diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ec584ba51c6..68cab63105ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -311,7 +311,7 @@
 - Features
   - Add new features:
     - `Object.fromEntries` ([ECMAScript 2019](https://github.com/tc39/proposal-object-from-entries))
-    - `Symbol#description` ([ECMAScript 2019](https://tc39.github.io/ecma262/#sec-symbol.prototype.description))
+    - `Symbol#description` ([ECMAScript 2019](https://tc39.es/ecma262/#sec-symbol.prototype.description))
     - New `Set` methods ([stage 2 proposal](https://github.com/tc39/proposal-set-methods))
       - `Set#difference`
       - `Set#intersection`
@@ -573,7 +573,7 @@
   - `Math.scale`
 - Added `Math.signbit` [stage 1 proposal](http://jfbastien.github.io/papers/Math.signbit.html)
 - Updated `global` [stage 3 proposal](https://github.com/tc39/proposal-global) - added `global` global object, `System.global` deprecated
-- Updated `Object.getOwnPropertyDescriptors` to the [final version](https://tc39.github.io/ecma262/2017/#sec-object.getownpropertydescriptors) - it should not create properties if descriptors are `undefined`
+- Updated `Object.getOwnPropertyDescriptors` to the [final version](https://tc39.es/ecma262/2017/#sec-object.getownpropertydescriptors) - it should not create properties if descriptors are `undefined`
 - Updated the list of iterable DOM collections, [#249](https://github.com/zloirock/core-js/issues/249), added:
   - `CSSStyleDeclaration#@@iterator`
   - `CSSValueList#@@iterator`
@@ -602,8 +602,8 @@
   - `TextTrackList#@@iterator`
   - `TouchList#@@iterator`
 - Updated stages of proposals:
-  - [`Object.getOwnPropertyDescriptors`](https://github.com/tc39/proposal-object-getownpropertydescriptors) to [stage 4 (ES2017)](https://tc39.github.io/ecma262/2017/#sec-object.getownpropertydescriptors)
-  - [String padding](https://github.com/tc39/proposal-string-pad-start-end) to [stage 4 (ES2017)](https://tc39.github.io/ecma262/2017/#sec-string.prototype.padend)
+  - [`Object.getOwnPropertyDescriptors`](https://github.com/tc39/proposal-object-getownpropertydescriptors) to [stage 4 (ES2017)](https://tc39.es/ecma262/2017/#sec-object.getownpropertydescriptors)
+  - [String padding](https://github.com/tc39/proposal-string-pad-start-end) to [stage 4 (ES2017)](https://tc39.es/ecma262/2017/#sec-string.prototype.padend)
   - [`global`](https://github.com/tc39/proposal-global) to [stage 3](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-09/sept-28.md#revisit-systemglobal--global)
   - [String trimming](https://github.com/tc39/proposal-string-left-right-trim) to [stage 2](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-07/jul-27.md#10iic-trimstarttrimend)
 - Updated typed arrays to the modern (ES2016+) arguments validation, 
diff --git a/README.md b/README.md
index 2e3f2fb6a5d7..52e611e798c7 100644
--- a/README.md
+++ b/README.md
@@ -359,7 +359,7 @@ Modules [`es.object.assign`](https://github.com/zloirock/core-js/blob/v3.8.1/pac
 
 Just ES5 features: [`es.object.create`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.create.js), [`es.object.define-property`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.define-property.js) and [`es.object.define-properties`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.es.object.define-properties.js).
 
-[ES2017 Annex B](https://tc39.github.io/ecma262/#sec-object.prototype.__defineGetter__) - modules [`es.object.define-setter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.define-setter.js), [`es.object.define-getter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.define-getter.js), [`es.object.lookup-setter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.lookup-setter.js) and [`es.object.lookup-getter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.lookup-getter.js)
+[ES2017 Annex B](https://tc39.es/ecma262/#sec-object.prototype.__defineGetter__) - modules [`es.object.define-setter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.define-setter.js), [`es.object.define-getter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.define-getter.js), [`es.object.lookup-setter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.lookup-setter.js) and [`es.object.lookup-getter`](https://github.com/zloirock/core-js/blob/v3.8.1/packages/core-js/modules/es.object.lookup-getter.js)
 ```js
 class Object {
   toString(): string; // ES2015+ fix: @@toStringTag support
diff --git a/packages/core-js-pure/override/modules/es.date.to-json.js b/packages/core-js-pure/override/modules/es.date.to-json.js
index 592f9e82ba92..f8216f5ffc70 100644
--- a/packages/core-js-pure/override/modules/es.date.to-json.js
+++ b/packages/core-js-pure/override/modules/es.date.to-json.js
@@ -11,6 +11,8 @@ var FORCED = fails(function () {
     || Date.prototype.toJSON.call({ toISOString: function () { return 1; } }) !== 1;
 });
 
+// `Date.prototype.toJSON` method
+// https://tc39.es/ecma262/#sec-date.prototype.tojson
 $({ target: 'Date', proto: true, forced: FORCED }, {
   // eslint-disable-next-line no-unused-vars
   toJSON: function toJSON(key) {
diff --git a/packages/core-js/internals/add-to-unscopables.js b/packages/core-js/internals/add-to-unscopables.js
index 4af733dc4dbb..c03eed1b7858 100644
--- a/packages/core-js/internals/add-to-unscopables.js
+++ b/packages/core-js/internals/add-to-unscopables.js
@@ -6,7 +6,7 @@ var UNSCOPABLES = wellKnownSymbol('unscopables');
 var ArrayPrototype = Array.prototype;
 
 // Array.prototype[@@unscopables]
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 if (ArrayPrototype[UNSCOPABLES] == undefined) {
   definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {
     configurable: true,
diff --git a/packages/core-js/internals/advance-string-index.js b/packages/core-js/internals/advance-string-index.js
index 700fbf012a7c..f104d5336265 100644
--- a/packages/core-js/internals/advance-string-index.js
+++ b/packages/core-js/internals/advance-string-index.js
@@ -2,7 +2,7 @@
 var charAt = require('../internals/string-multibyte').charAt;
 
 // `AdvanceStringIndex` abstract operation
-// https://tc39.github.io/ecma262/#sec-advancestringindex
+// https://tc39.es/ecma262/#sec-advancestringindex
 module.exports = function (S, index, unicode) {
   return index + (unicode ? charAt(S, index).length : 1);
 };
diff --git a/packages/core-js/internals/array-copy-within.js b/packages/core-js/internals/array-copy-within.js
index 70c8edbf92db..9f3db1c192d1 100644
--- a/packages/core-js/internals/array-copy-within.js
+++ b/packages/core-js/internals/array-copy-within.js
@@ -6,7 +6,7 @@ var toLength = require('../internals/to-length');
 var min = Math.min;
 
 // `Array.prototype.copyWithin` method implementation
-// https://tc39.github.io/ecma262/#sec-array.prototype.copywithin
+// https://tc39.es/ecma262/#sec-array.prototype.copywithin
 module.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
   var O = toObject(this);
   var len = toLength(O.length);
diff --git a/packages/core-js/internals/array-fill.js b/packages/core-js/internals/array-fill.js
index 7c15a04f10f8..1ef61561aadc 100644
--- a/packages/core-js/internals/array-fill.js
+++ b/packages/core-js/internals/array-fill.js
@@ -4,7 +4,7 @@ var toAbsoluteIndex = require('../internals/to-absolute-index');
 var toLength = require('../internals/to-length');
 
 // `Array.prototype.fill` method implementation
-// https://tc39.github.io/ecma262/#sec-array.prototype.fill
+// https://tc39.es/ecma262/#sec-array.prototype.fill
 module.exports = function fill(value /* , start = 0, end = @length */) {
   var O = toObject(this);
   var length = toLength(O.length);
diff --git a/packages/core-js/internals/array-for-each.js b/packages/core-js/internals/array-for-each.js
index d8872dbd21f6..0e2dc90c710a 100644
--- a/packages/core-js/internals/array-for-each.js
+++ b/packages/core-js/internals/array-for-each.js
@@ -7,7 +7,7 @@ var STRICT_METHOD = arrayMethodIsStrict('forEach');
 var USES_TO_LENGTH = arrayMethodUsesToLength('forEach');
 
 // `Array.prototype.forEach` method implementation
-// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
+// https://tc39.es/ecma262/#sec-array.prototype.foreach
 module.exports = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {
   return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
 } : [].forEach;
diff --git a/packages/core-js/internals/array-from.js b/packages/core-js/internals/array-from.js
index 490a3c29cd3a..454b13be4462 100644
--- a/packages/core-js/internals/array-from.js
+++ b/packages/core-js/internals/array-from.js
@@ -8,7 +8,7 @@ var createProperty = require('../internals/create-property');
 var getIteratorMethod = require('../internals/get-iterator-method');
 
 // `Array.from` method implementation
-// https://tc39.github.io/ecma262/#sec-array.from
+// https://tc39.es/ecma262/#sec-array.from
 module.exports = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
   var O = toObject(arrayLike);
   var C = typeof this == 'function' ? this : Array;
diff --git a/packages/core-js/internals/array-includes.js b/packages/core-js/internals/array-includes.js
index a4161204b34c..3e15e0d7397e 100644
--- a/packages/core-js/internals/array-includes.js
+++ b/packages/core-js/internals/array-includes.js
@@ -24,9 +24,9 @@ var createMethod = function (IS_INCLUDES) {
 
 module.exports = {
   // `Array.prototype.includes` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.includes
+  // https://tc39.es/ecma262/#sec-array.prototype.includes
   includes: createMethod(true),
   // `Array.prototype.indexOf` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.indexof
+  // https://tc39.es/ecma262/#sec-array.prototype.indexof
   indexOf: createMethod(false)
 };
diff --git a/packages/core-js/internals/array-iteration.js b/packages/core-js/internals/array-iteration.js
index 53dec6285fff..33522eb41a53 100644
--- a/packages/core-js/internals/array-iteration.js
+++ b/packages/core-js/internals/array-iteration.js
@@ -46,25 +46,25 @@ var createMethod = function (TYPE) {
 
 module.exports = {
   // `Array.prototype.forEach` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.foreach
+  // https://tc39.es/ecma262/#sec-array.prototype.foreach
   forEach: createMethod(0),
   // `Array.prototype.map` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.map
+  // https://tc39.es/ecma262/#sec-array.prototype.map
   map: createMethod(1),
   // `Array.prototype.filter` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.filter
+  // https://tc39.es/ecma262/#sec-array.prototype.filter
   filter: createMethod(2),
   // `Array.prototype.some` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.some
+  // https://tc39.es/ecma262/#sec-array.prototype.some
   some: createMethod(3),
   // `Array.prototype.every` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.every
+  // https://tc39.es/ecma262/#sec-array.prototype.every
   every: createMethod(4),
   // `Array.prototype.find` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.find
+  // https://tc39.es/ecma262/#sec-array.prototype.find
   find: createMethod(5),
   // `Array.prototype.findIndex` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex
+  // https://tc39.es/ecma262/#sec-array.prototype.findIndex
   findIndex: createMethod(6),
   // `Array.prototype.filterOut` method
   // https://github.com/tc39/proposal-array-filtering
diff --git a/packages/core-js/internals/array-last-index-of.js b/packages/core-js/internals/array-last-index-of.js
index 8d1c93c4a9ff..a1bf9c6d13c4 100644
--- a/packages/core-js/internals/array-last-index-of.js
+++ b/packages/core-js/internals/array-last-index-of.js
@@ -14,7 +14,7 @@ var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0
 var FORCED = NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH;
 
 // `Array.prototype.lastIndexOf` method implementation
-// https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof
+// https://tc39.es/ecma262/#sec-array.prototype.lastindexof
 module.exports = FORCED ? function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {
   // convert -0 to +0
   if (NEGATIVE_ZERO) return nativeLastIndexOf.apply(this, arguments) || 0;
diff --git a/packages/core-js/internals/array-reduce.js b/packages/core-js/internals/array-reduce.js
index 3f170377deec..76290fe41374 100644
--- a/packages/core-js/internals/array-reduce.js
+++ b/packages/core-js/internals/array-reduce.js
@@ -32,9 +32,9 @@ var createMethod = function (IS_RIGHT) {
 
 module.exports = {
   // `Array.prototype.reduce` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.reduce
+  // https://tc39.es/ecma262/#sec-array.prototype.reduce
   left: createMethod(false),
   // `Array.prototype.reduceRight` method
-  // https://tc39.github.io/ecma262/#sec-array.prototype.reduceright
+  // https://tc39.es/ecma262/#sec-array.prototype.reduceright
   right: createMethod(true)
 };
diff --git a/packages/core-js/internals/array-species-create.js b/packages/core-js/internals/array-species-create.js
index 5c6eaabe14ab..e6142b7c0cdf 100644
--- a/packages/core-js/internals/array-species-create.js
+++ b/packages/core-js/internals/array-species-create.js
@@ -5,7 +5,7 @@ var wellKnownSymbol = require('../internals/well-known-symbol');
 var SPECIES = wellKnownSymbol('species');
 
 // `ArraySpeciesCreate` abstract operation
-// https://tc39.github.io/ecma262/#sec-arrayspeciescreate
+// https://tc39.es/ecma262/#sec-arrayspeciescreate
 module.exports = function (originalArray, length) {
   var C;
   if (isArray(originalArray)) {
diff --git a/packages/core-js/internals/create-html.js b/packages/core-js/internals/create-html.js
index 57e560c30097..9d37c1a2826b 100644
--- a/packages/core-js/internals/create-html.js
+++ b/packages/core-js/internals/create-html.js
@@ -3,7 +3,7 @@ var requireObjectCoercible = require('../internals/require-object-coercible');
 var quot = /"/g;
 
 // B.2.3.2.1 CreateHTML(string, tag, attribute, value)
-// https://tc39.github.io/ecma262/#sec-createhtml
+// https://tc39.es/ecma262/#sec-createhtml
 module.exports = function (string, tag, attribute, value) {
   var S = String(requireObjectCoercible(string));
   var p1 = '<' + tag;
diff --git a/packages/core-js/internals/date-to-iso-string.js b/packages/core-js/internals/date-to-iso-string.js
index f22503a3a767..63c15cd23704 100644
--- a/packages/core-js/internals/date-to-iso-string.js
+++ b/packages/core-js/internals/date-to-iso-string.js
@@ -8,7 +8,7 @@ var getTime = DatePrototype.getTime;
 var nativeDateToISOString = DatePrototype.toISOString;
 
 // `Date.prototype.toISOString` method implementation
-// https://tc39.github.io/ecma262/#sec-date.prototype.toisostring
+// https://tc39.es/ecma262/#sec-date.prototype.toisostring
 // PhantomJS / old WebKit fails here:
 module.exports = (fails(function () {
   return nativeDateToISOString.call(new Date(-5e13 - 1)) != '0385-07-25T07:06:39.999Z';
diff --git a/packages/core-js/internals/function-bind.js b/packages/core-js/internals/function-bind.js
index 6e1e81dd3abd..9e9a0b58f3cb 100644
--- a/packages/core-js/internals/function-bind.js
+++ b/packages/core-js/internals/function-bind.js
@@ -14,7 +14,7 @@ var construct = function (C, argsLength, args) {
 };
 
 // `Function.prototype.bind` method implementation
-// https://tc39.github.io/ecma262/#sec-function.prototype.bind
+// https://tc39.es/ecma262/#sec-function.prototype.bind
 module.exports = Function.bind || function bind(that /* , ...args */) {
   var fn = aFunction(this);
   var partArgs = slice.call(arguments, 1);
diff --git a/packages/core-js/internals/get-substitution.js b/packages/core-js/internals/get-substitution.js
index 935965f347c4..7e55a619b8f3 100644
--- a/packages/core-js/internals/get-substitution.js
+++ b/packages/core-js/internals/get-substitution.js
@@ -5,7 +5,7 @@ var replace = ''.replace;
 var SUBSTITUTION_SYMBOLS = /\$([$&'`]|\d\d?|<[^>]*>)/g;
 var SUBSTITUTION_SYMBOLS_NO_NAMED = /\$([$&'`]|\d\d?)/g;
 
-// https://tc39.github.io/ecma262/#sec-getsubstitution
+// https://tc39.es/ecma262/#sec-getsubstitution
 module.exports = function (matched, str, position, captures, namedCaptures, replacement) {
   var tailPos = position + matched.length;
   var m = captures.length;
diff --git a/packages/core-js/internals/is-array.js b/packages/core-js/internals/is-array.js
index 757515da506b..3f00b7bc1fca 100644
--- a/packages/core-js/internals/is-array.js
+++ b/packages/core-js/internals/is-array.js
@@ -1,7 +1,7 @@
 var classof = require('../internals/classof-raw');
 
 // `IsArray` abstract operation
-// https://tc39.github.io/ecma262/#sec-isarray
+// https://tc39.es/ecma262/#sec-isarray
 module.exports = Array.isArray || function isArray(arg) {
   return classof(arg) == 'Array';
 };
diff --git a/packages/core-js/internals/is-integer.js b/packages/core-js/internals/is-integer.js
index df16086443d2..e32ccde1c32d 100644
--- a/packages/core-js/internals/is-integer.js
+++ b/packages/core-js/internals/is-integer.js
@@ -3,7 +3,7 @@ var isObject = require('../internals/is-object');
 var floor = Math.floor;
 
 // `Number.isInteger` method implementation
-// https://tc39.github.io/ecma262/#sec-number.isinteger
+// https://tc39.es/ecma262/#sec-number.isinteger
 module.exports = function isInteger(it) {
   return !isObject(it) && isFinite(it) && floor(it) === it;
 };
diff --git a/packages/core-js/internals/is-regexp.js b/packages/core-js/internals/is-regexp.js
index e2c7247e04b7..b6a97bc39992 100644
--- a/packages/core-js/internals/is-regexp.js
+++ b/packages/core-js/internals/is-regexp.js
@@ -5,7 +5,7 @@ var wellKnownSymbol = require('../internals/well-known-symbol');
 var MATCH = wellKnownSymbol('match');
 
 // `IsRegExp` abstract operation
-// https://tc39.github.io/ecma262/#sec-isregexp
+// https://tc39.es/ecma262/#sec-isregexp
 module.exports = function (it) {
   var isRegExp;
   return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classof(it) == 'RegExp');
diff --git a/packages/core-js/internals/iterators-core.js b/packages/core-js/internals/iterators-core.js
index fccca93e91d3..bbaf9db410e1 100644
--- a/packages/core-js/internals/iterators-core.js
+++ b/packages/core-js/internals/iterators-core.js
@@ -11,7 +11,7 @@ var BUGGY_SAFARI_ITERATORS = false;
 var returnThis = function () { return this; };
 
 // `%IteratorPrototype%` object
-// https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object
+// https://tc39.es/ecma262/#sec-%iteratorprototype%-object
 var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;
 
 if ([].keys) {
diff --git a/packages/core-js/internals/math-expm1.js b/packages/core-js/internals/math-expm1.js
index 3a14c0731177..9faa5dec3a3e 100644
--- a/packages/core-js/internals/math-expm1.js
+++ b/packages/core-js/internals/math-expm1.js
@@ -2,7 +2,7 @@ var nativeExpm1 = Math.expm1;
 var exp = Math.exp;
 
 // `Math.expm1` method implementation
-// https://tc39.github.io/ecma262/#sec-math.expm1
+// https://tc39.es/ecma262/#sec-math.expm1
 module.exports = (!nativeExpm1
   // Old FF bug
   || nativeExpm1(10) > 22025.465794806719 || nativeExpm1(10) < 22025.4657948067165168
diff --git a/packages/core-js/internals/math-fround.js b/packages/core-js/internals/math-fround.js
index 0642e3121cca..7a536916c4b8 100644
--- a/packages/core-js/internals/math-fround.js
+++ b/packages/core-js/internals/math-fround.js
@@ -12,7 +12,7 @@ var roundTiesToEven = function (n) {
 };
 
 // `Math.fround` method implementation
-// https://tc39.github.io/ecma262/#sec-math.fround
+// https://tc39.es/ecma262/#sec-math.fround
 module.exports = Math.fround || function fround(x) {
   var $abs = abs(x);
   var $sign = sign(x);
diff --git a/packages/core-js/internals/math-log1p.js b/packages/core-js/internals/math-log1p.js
index 3d2545c6c47e..1f1a0c935869 100644
--- a/packages/core-js/internals/math-log1p.js
+++ b/packages/core-js/internals/math-log1p.js
@@ -1,7 +1,7 @@
 var log = Math.log;
 
 // `Math.log1p` method implementation
-// https://tc39.github.io/ecma262/#sec-math.log1p
+// https://tc39.es/ecma262/#sec-math.log1p
 module.exports = Math.log1p || function log1p(x) {
   return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : log(1 + x);
 };
diff --git a/packages/core-js/internals/math-sign.js b/packages/core-js/internals/math-sign.js
index 92606963382b..b6585470ae9d 100644
--- a/packages/core-js/internals/math-sign.js
+++ b/packages/core-js/internals/math-sign.js
@@ -1,5 +1,5 @@
 // `Math.sign` method implementation
-// https://tc39.github.io/ecma262/#sec-math.sign
+// https://tc39.es/ecma262/#sec-math.sign
 module.exports = Math.sign || function sign(x) {
   // eslint-disable-next-line no-self-compare
   return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
diff --git a/packages/core-js/internals/number-is-finite.js b/packages/core-js/internals/number-is-finite.js
index 4b26c4a8c723..721f9ab1f120 100644
--- a/packages/core-js/internals/number-is-finite.js
+++ b/packages/core-js/internals/number-is-finite.js
@@ -3,7 +3,7 @@ var global = require('../internals/global');
 var globalIsFinite = global.isFinite;
 
 // `Number.isFinite` method
-// https://tc39.github.io/ecma262/#sec-number.isfinite
+// https://tc39.es/ecma262/#sec-number.isfinite
 module.exports = Number.isFinite || function isFinite(it) {
   return typeof it == 'number' && globalIsFinite(it);
 };
diff --git a/packages/core-js/internals/number-parse-float.js b/packages/core-js/internals/number-parse-float.js
index 0ff341d34e2a..cdf2d789036b 100644
--- a/packages/core-js/internals/number-parse-float.js
+++ b/packages/core-js/internals/number-parse-float.js
@@ -6,7 +6,7 @@ var $parseFloat = global.parseFloat;
 var FORCED = 1 / $parseFloat(whitespaces + '-0') !== -Infinity;
 
 // `parseFloat` method
-// https://tc39.github.io/ecma262/#sec-parsefloat-string
+// https://tc39.es/ecma262/#sec-parsefloat-string
 module.exports = FORCED ? function parseFloat(string) {
   var trimmedString = trim(String(string));
   var result = $parseFloat(trimmedString);
diff --git a/packages/core-js/internals/number-parse-int.js b/packages/core-js/internals/number-parse-int.js
index 11b8232f249e..d284f3431744 100644
--- a/packages/core-js/internals/number-parse-int.js
+++ b/packages/core-js/internals/number-parse-int.js
@@ -7,7 +7,7 @@ var hex = /^[+-]?0[Xx]/;
 var FORCED = $parseInt(whitespaces + '08') !== 8 || $parseInt(whitespaces + '0x16') !== 22;
 
 // `parseInt` method
-// https://tc39.github.io/ecma262/#sec-parseint-string-radix
+// https://tc39.es/ecma262/#sec-parseint-string-radix
 module.exports = FORCED ? function parseInt(string, radix) {
   var S = trim(String(string));
   return $parseInt(S, (radix >>> 0) || (hex.test(S) ? 16 : 10));
diff --git a/packages/core-js/internals/object-assign.js b/packages/core-js/internals/object-assign.js
index f15d0005d82e..74fe42a5fcfd 100644
--- a/packages/core-js/internals/object-assign.js
+++ b/packages/core-js/internals/object-assign.js
@@ -11,7 +11,7 @@ var nativeAssign = Object.assign;
 var defineProperty = Object.defineProperty;
 
 // `Object.assign` method
-// https://tc39.github.io/ecma262/#sec-object.assign
+// https://tc39.es/ecma262/#sec-object.assign
 module.exports = !nativeAssign || fails(function () {
   // should have correct order of operations (Edge bug)
   if (DESCRIPTORS && nativeAssign({ b: 1 }, nativeAssign(defineProperty({}, 'a', {
diff --git a/packages/core-js/internals/object-create.js b/packages/core-js/internals/object-create.js
index 346d10867cb6..11dc28bdbc75 100644
--- a/packages/core-js/internals/object-create.js
+++ b/packages/core-js/internals/object-create.js
@@ -64,7 +64,7 @@ var NullProtoObject = function () {
 hiddenKeys[IE_PROTO] = true;
 
 // `Object.create` method
-// https://tc39.github.io/ecma262/#sec-object.create
+// https://tc39.es/ecma262/#sec-object.create
 module.exports = Object.create || function create(O, Properties) {
   var result;
   if (O !== null) {
diff --git a/packages/core-js/internals/object-define-properties.js b/packages/core-js/internals/object-define-properties.js
index c2b53399d94c..64c7f5ddf5e1 100644
--- a/packages/core-js/internals/object-define-properties.js
+++ b/packages/core-js/internals/object-define-properties.js
@@ -4,7 +4,7 @@ var anObject = require('../internals/an-object');
 var objectKeys = require('../internals/object-keys');
 
 // `Object.defineProperties` method
-// https://tc39.github.io/ecma262/#sec-object.defineproperties
+// https://tc39.es/ecma262/#sec-object.defineproperties
 module.exports = DESCRIPTORS ? Object.defineProperties : function defineProperties(O, Properties) {
   anObject(O);
   var keys = objectKeys(Properties);
diff --git a/packages/core-js/internals/object-define-property.js b/packages/core-js/internals/object-define-property.js
index 375f20fb481e..8cd2b32ff257 100644
--- a/packages/core-js/internals/object-define-property.js
+++ b/packages/core-js/internals/object-define-property.js
@@ -6,7 +6,7 @@ var toPrimitive = require('../internals/to-primitive');
 var nativeDefineProperty = Object.defineProperty;
 
 // `Object.defineProperty` method
-// https://tc39.github.io/ecma262/#sec-object.defineproperty
+// https://tc39.es/ecma262/#sec-object.defineproperty
 exports.f = DESCRIPTORS ? nativeDefineProperty : function defineProperty(O, P, Attributes) {
   anObject(O);
   P = toPrimitive(P, true);
diff --git a/packages/core-js/internals/object-get-own-property-descriptor.js b/packages/core-js/internals/object-get-own-property-descriptor.js
index acdae01787c5..f8d6b3871e76 100644
--- a/packages/core-js/internals/object-get-own-property-descriptor.js
+++ b/packages/core-js/internals/object-get-own-property-descriptor.js
@@ -9,7 +9,7 @@ var IE8_DOM_DEFINE = require('../internals/ie8-dom-define');
 var nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
 
 // `Object.getOwnPropertyDescriptor` method
-// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor
+// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
 exports.f = DESCRIPTORS ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
   O = toIndexedObject(O);
   P = toPrimitive(P, true);
diff --git a/packages/core-js/internals/object-get-own-property-names.js b/packages/core-js/internals/object-get-own-property-names.js
index f1b1be6ce684..9dd23c9b9c8a 100644
--- a/packages/core-js/internals/object-get-own-property-names.js
+++ b/packages/core-js/internals/object-get-own-property-names.js
@@ -4,7 +4,7 @@ var enumBugKeys = require('../internals/enum-bug-keys');
 var hiddenKeys = enumBugKeys.concat('length', 'prototype');
 
 // `Object.getOwnPropertyNames` method
-// https://tc39.github.io/ecma262/#sec-object.getownpropertynames
+// https://tc39.es/ecma262/#sec-object.getownpropertynames
 exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
   return internalObjectKeys(O, hiddenKeys);
 };
diff --git a/packages/core-js/internals/object-get-prototype-of.js b/packages/core-js/internals/object-get-prototype-of.js
index c0bb726b8071..73a1715c05e6 100644
--- a/packages/core-js/internals/object-get-prototype-of.js
+++ b/packages/core-js/internals/object-get-prototype-of.js
@@ -7,7 +7,7 @@ var IE_PROTO = sharedKey('IE_PROTO');
 var ObjectPrototype = Object.prototype;
 
 // `Object.getPrototypeOf` method
-// https://tc39.github.io/ecma262/#sec-object.getprototypeof
+// https://tc39.es/ecma262/#sec-object.getprototypeof
 module.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {
   O = toObject(O);
   if (has(O, IE_PROTO)) return O[IE_PROTO];
diff --git a/packages/core-js/internals/object-keys.js b/packages/core-js/internals/object-keys.js
index 7188505dc525..2d5a94629098 100644
--- a/packages/core-js/internals/object-keys.js
+++ b/packages/core-js/internals/object-keys.js
@@ -2,7 +2,7 @@ var internalObjectKeys = require('../internals/object-keys-internal');
 var enumBugKeys = require('../internals/enum-bug-keys');
 
 // `Object.keys` method
-// https://tc39.github.io/ecma262/#sec-object.keys
+// https://tc39.es/ecma262/#sec-object.keys
 module.exports = Object.keys || function keys(O) {
   return internalObjectKeys(O, enumBugKeys);
 };
diff --git a/packages/core-js/internals/object-property-is-enumerable.js b/packages/core-js/internals/object-property-is-enumerable.js
index 9ff22096793b..6b1066165c4a 100644
--- a/packages/core-js/internals/object-property-is-enumerable.js
+++ b/packages/core-js/internals/object-property-is-enumerable.js
@@ -6,7 +6,7 @@ var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
 var NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);
 
 // `Object.prototype.propertyIsEnumerable` method implementation
-// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable
+// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
 exports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
   var descriptor = getOwnPropertyDescriptor(this, V);
   return !!descriptor && descriptor.enumerable;
diff --git a/packages/core-js/internals/object-set-prototype-of.js b/packages/core-js/internals/object-set-prototype-of.js
index ce7e97ccf7c6..be4ae03e5fc0 100644
--- a/packages/core-js/internals/object-set-prototype-of.js
+++ b/packages/core-js/internals/object-set-prototype-of.js
@@ -2,7 +2,7 @@ var anObject = require('../internals/an-object');
 var aPossiblePrototype = require('../internals/a-possible-prototype');
 
 // `Object.setPrototypeOf` method
-// https://tc39.github.io/ecma262/#sec-object.setprototypeof
+// https://tc39.es/ecma262/#sec-object.setprototypeof
 // Works with __proto__ only. Old v8 can't work with null proto objects.
 /* eslint-disable no-proto */
 module.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {
diff --git a/packages/core-js/internals/object-to-array.js b/packages/core-js/internals/object-to-array.js
index 8e2409df7925..7ecba6edb956 100644
--- a/packages/core-js/internals/object-to-array.js
+++ b/packages/core-js/internals/object-to-array.js
@@ -24,9 +24,9 @@ var createMethod = function (TO_ENTRIES) {
 
 module.exports = {
   // `Object.entries` method
-  // https://tc39.github.io/ecma262/#sec-object.entries
+  // https://tc39.es/ecma262/#sec-object.entries
   entries: createMethod(true),
   // `Object.values` method
-  // https://tc39.github.io/ecma262/#sec-object.values
+  // https://tc39.es/ecma262/#sec-object.values
   values: createMethod(false)
 };
diff --git a/packages/core-js/internals/object-to-string.js b/packages/core-js/internals/object-to-string.js
index 68fbea7c752b..d624036d786b 100644
--- a/packages/core-js/internals/object-to-string.js
+++ b/packages/core-js/internals/object-to-string.js
@@ -3,7 +3,7 @@ var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');
 var classof = require('../internals/classof');
 
 // `Object.prototype.toString` method implementation
-// https://tc39.github.io/ecma262/#sec-object.prototype.tostring
+// https://tc39.es/ecma262/#sec-object.prototype.tostring
 module.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {
   return '[object ' + classof(this) + ']';
 };
diff --git a/packages/core-js/internals/regexp-exec-abstract.js b/packages/core-js/internals/regexp-exec-abstract.js
index 496225f14aea..901ec6b7259d 100644
--- a/packages/core-js/internals/regexp-exec-abstract.js
+++ b/packages/core-js/internals/regexp-exec-abstract.js
@@ -2,7 +2,7 @@ var classof = require('./classof-raw');
 var regexpExec = require('./regexp-exec');
 
 // `RegExpExec` abstract operation
-// https://tc39.github.io/ecma262/#sec-regexpexec
+// https://tc39.es/ecma262/#sec-regexpexec
 module.exports = function (R, S) {
   var exec = R.exec;
   if (typeof exec === 'function') {
diff --git a/packages/core-js/internals/regexp-flags.js b/packages/core-js/internals/regexp-flags.js
index c77927b023a2..09bb5e4174f5 100644
--- a/packages/core-js/internals/regexp-flags.js
+++ b/packages/core-js/internals/regexp-flags.js
@@ -2,7 +2,7 @@
 var anObject = require('../internals/an-object');
 
 // `RegExp.prototype.flags` getter implementation
-// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags
+// https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
 module.exports = function () {
   var that = anObject(this);
   var result = '';
diff --git a/packages/core-js/internals/require-object-coercible.js b/packages/core-js/internals/require-object-coercible.js
index f7b266273162..08bf0a8fe080 100644
--- a/packages/core-js/internals/require-object-coercible.js
+++ b/packages/core-js/internals/require-object-coercible.js
@@ -1,5 +1,5 @@
 // `RequireObjectCoercible` abstract operation
-// https://tc39.github.io/ecma262/#sec-requireobjectcoercible
+// https://tc39.es/ecma262/#sec-requireobjectcoercible
 module.exports = function (it) {
   if (it == undefined) throw TypeError("Can't call method on " + it);
   return it;
diff --git a/packages/core-js/internals/same-value-zero.js b/packages/core-js/internals/same-value-zero.js
index 452f23083c3b..5ac9e87cd618 100644
--- a/packages/core-js/internals/same-value-zero.js
+++ b/packages/core-js/internals/same-value-zero.js
@@ -1,5 +1,5 @@
 // `SameValueZero` abstract operation
-// https://tc39.github.io/ecma262/#sec-samevaluezero
+// https://tc39.es/ecma262/#sec-samevaluezero
 module.exports = function (x, y) {
   // eslint-disable-next-line no-self-compare
   return x === y || x != x && y != y;
diff --git a/packages/core-js/internals/same-value.js b/packages/core-js/internals/same-value.js
index 4661f85a2984..12ad859c775b 100644
--- a/packages/core-js/internals/same-value.js
+++ b/packages/core-js/internals/same-value.js
@@ -1,5 +1,5 @@
 // `SameValue` abstract operation
-// https://tc39.github.io/ecma262/#sec-samevalue
+// https://tc39.es/ecma262/#sec-samevalue
 module.exports = Object.is || function is(x, y) {
   // eslint-disable-next-line no-self-compare
   return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;
diff --git a/packages/core-js/internals/species-constructor.js b/packages/core-js/internals/species-constructor.js
index 4d8f565746b9..99793ac9b88f 100644
--- a/packages/core-js/internals/species-constructor.js
+++ b/packages/core-js/internals/species-constructor.js
@@ -5,7 +5,7 @@ var wellKnownSymbol = require('../internals/well-known-symbol');
 var SPECIES = wellKnownSymbol('species');
 
 // `SpeciesConstructor` abstract operation
-// https://tc39.github.io/ecma262/#sec-speciesconstructor
+// https://tc39.es/ecma262/#sec-speciesconstructor
 module.exports = function (O, defaultConstructor) {
   var C = anObject(O).constructor;
   var S;
diff --git a/packages/core-js/internals/string-multibyte.js b/packages/core-js/internals/string-multibyte.js
index c0cf086294ba..9bf1f16f4906 100644
--- a/packages/core-js/internals/string-multibyte.js
+++ b/packages/core-js/internals/string-multibyte.js
@@ -19,7 +19,7 @@ var createMethod = function (CONVERT_TO_STRING) {
 
 module.exports = {
   // `String.prototype.codePointAt` method
-  // https://tc39.github.io/ecma262/#sec-string.prototype.codepointat
+  // https://tc39.es/ecma262/#sec-string.prototype.codepointat
   codeAt: createMethod(false),
   // `String.prototype.at` method
   // https://github.com/mathiasbynens/String.prototype.at
diff --git a/packages/core-js/internals/string-pad.js b/packages/core-js/internals/string-pad.js
index c03090e08b5d..9ead579be2c6 100644
--- a/packages/core-js/internals/string-pad.js
+++ b/packages/core-js/internals/string-pad.js
@@ -23,9 +23,9 @@ var createMethod = function (IS_END) {
 
 module.exports = {
   // `String.prototype.padStart` method
-  // https://tc39.github.io/ecma262/#sec-string.prototype.padstart
+  // https://tc39.es/ecma262/#sec-string.prototype.padstart
   start: createMethod(false),
   // `String.prototype.padEnd` method
-  // https://tc39.github.io/ecma262/#sec-string.prototype.padend
+  // https://tc39.es/ecma262/#sec-string.prototype.padend
   end: createMethod(true)
 };
diff --git a/packages/core-js/internals/string-repeat.js b/packages/core-js/internals/string-repeat.js
index ab872b2fee96..10795280b007 100644
--- a/packages/core-js/internals/string-repeat.js
+++ b/packages/core-js/internals/string-repeat.js
@@ -3,7 +3,7 @@ var toInteger = require('../internals/to-integer');
 var requireObjectCoercible = require('../internals/require-object-coercible');
 
 // `String.prototype.repeat` method implementation
-// https://tc39.github.io/ecma262/#sec-string.prototype.repeat
+// https://tc39.es/ecma262/#sec-string.prototype.repeat
 module.exports = ''.repeat || function repeat(count) {
   var str = String(requireObjectCoercible(this));
   var result = '';
diff --git a/packages/core-js/internals/string-trim.js b/packages/core-js/internals/string-trim.js
index 294a32c8f459..9086f1a9d5f0 100644
--- a/packages/core-js/internals/string-trim.js
+++ b/packages/core-js/internals/string-trim.js
@@ -17,12 +17,12 @@ var createMethod = function (TYPE) {
 
 module.exports = {
   // `String.prototype.{ trimLeft, trimStart }` methods
-  // https://tc39.github.io/ecma262/#sec-string.prototype.trimstart
+  // https://tc39.es/ecma262/#sec-string.prototype.trimstart
   start: createMethod(1),
   // `String.prototype.{ trimRight, trimEnd }` methods
-  // https://tc39.github.io/ecma262/#sec-string.prototype.trimend
+  // https://tc39.es/ecma262/#sec-string.prototype.trimend
   end: createMethod(2),
   // `String.prototype.trim` method
-  // https://tc39.github.io/ecma262/#sec-string.prototype.trim
+  // https://tc39.es/ecma262/#sec-string.prototype.trim
   trim: createMethod(3)
 };
diff --git a/packages/core-js/internals/this-number-value.js b/packages/core-js/internals/this-number-value.js
index 7734b329e01e..d1b7f421db32 100644
--- a/packages/core-js/internals/this-number-value.js
+++ b/packages/core-js/internals/this-number-value.js
@@ -1,7 +1,7 @@
 var classof = require('../internals/classof-raw');
 
 // `thisNumberValue` abstract operation
-// https://tc39.github.io/ecma262/#sec-thisnumbervalue
+// https://tc39.es/ecma262/#sec-thisnumbervalue
 module.exports = function (value) {
   if (typeof value != 'number' && classof(value) != 'Number') {
     throw TypeError('Incorrect invocation');
diff --git a/packages/core-js/internals/to-index.js b/packages/core-js/internals/to-index.js
index 004a3a22eb77..9bfd02757af9 100644
--- a/packages/core-js/internals/to-index.js
+++ b/packages/core-js/internals/to-index.js
@@ -2,7 +2,7 @@ var toInteger = require('../internals/to-integer');
 var toLength = require('../internals/to-length');
 
 // `ToIndex` abstract operation
-// https://tc39.github.io/ecma262/#sec-toindex
+// https://tc39.es/ecma262/#sec-toindex
 module.exports = function (it) {
   if (it === undefined) return 0;
   var number = toInteger(it);
diff --git a/packages/core-js/internals/to-integer.js b/packages/core-js/internals/to-integer.js
index f7c63906f83c..50c151dfff7b 100644
--- a/packages/core-js/internals/to-integer.js
+++ b/packages/core-js/internals/to-integer.js
@@ -2,7 +2,7 @@ var ceil = Math.ceil;
 var floor = Math.floor;
 
 // `ToInteger` abstract operation
-// https://tc39.github.io/ecma262/#sec-tointeger
+// https://tc39.es/ecma262/#sec-tointeger
 module.exports = function (argument) {
   return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
 };
diff --git a/packages/core-js/internals/to-length.js b/packages/core-js/internals/to-length.js
index fbc2a49ea6c8..51a0840cb298 100644
--- a/packages/core-js/internals/to-length.js
+++ b/packages/core-js/internals/to-length.js
@@ -3,7 +3,7 @@ var toInteger = require('../internals/to-integer');
 var min = Math.min;
 
 // `ToLength` abstract operation
-// https://tc39.github.io/ecma262/#sec-tolength
+// https://tc39.es/ecma262/#sec-tolength
 module.exports = function (argument) {
   return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
 };
diff --git a/packages/core-js/internals/to-object.js b/packages/core-js/internals/to-object.js
index fd635e2568fc..5ea37bde4bba 100644
--- a/packages/core-js/internals/to-object.js
+++ b/packages/core-js/internals/to-object.js
@@ -1,7 +1,7 @@
 var requireObjectCoercible = require('../internals/require-object-coercible');
 
 // `ToObject` abstract operation
-// https://tc39.github.io/ecma262/#sec-toobject
+// https://tc39.es/ecma262/#sec-toobject
 module.exports = function (argument) {
   return Object(requireObjectCoercible(argument));
 };
diff --git a/packages/core-js/internals/to-primitive.js b/packages/core-js/internals/to-primitive.js
index 00a403141749..aa6c06e7154d 100644
--- a/packages/core-js/internals/to-primitive.js
+++ b/packages/core-js/internals/to-primitive.js
@@ -1,7 +1,7 @@
 var isObject = require('../internals/is-object');
 
 // `ToPrimitive` abstract operation
-// https://tc39.github.io/ecma262/#sec-toprimitive
+// https://tc39.es/ecma262/#sec-toprimitive
 // instead of the ES6 spec version, we didn't implement @@toPrimitive case
 // and the second argument - flag - preferred type is a string
 module.exports = function (input, PREFERRED_STRING) {
diff --git a/packages/core-js/modules/es.aggregate-error.js b/packages/core-js/modules/es.aggregate-error.js
index b7105b613040..eb5e511b163a 100644
--- a/packages/core-js/modules/es.aggregate-error.js
+++ b/packages/core-js/modules/es.aggregate-error.js
@@ -27,6 +27,8 @@ $AggregateError.prototype = create(Error.prototype, {
   name: createPropertyDescriptor(5, 'AggregateError')
 });
 
+// `AggregateError` constructor
+// https://tc39.es/ecma262/#sec-aggregate-error-constructor
 $({ global: true }, {
   AggregateError: $AggregateError
 });
diff --git a/packages/core-js/modules/es.array-buffer.constructor.js b/packages/core-js/modules/es.array-buffer.constructor.js
index b4e4df458184..102e5dc25d06 100644
--- a/packages/core-js/modules/es.array-buffer.constructor.js
+++ b/packages/core-js/modules/es.array-buffer.constructor.js
@@ -9,7 +9,7 @@ var ArrayBuffer = arrayBufferModule[ARRAY_BUFFER];
 var NativeArrayBuffer = global[ARRAY_BUFFER];
 
 // `ArrayBuffer` constructor
-// https://tc39.github.io/ecma262/#sec-arraybuffer-constructor
+// https://tc39.es/ecma262/#sec-arraybuffer-constructor
 $({ global: true, forced: NativeArrayBuffer !== ArrayBuffer }, {
   ArrayBuffer: ArrayBuffer
 });
diff --git a/packages/core-js/modules/es.array-buffer.is-view.js b/packages/core-js/modules/es.array-buffer.is-view.js
index 0b23d5c3211d..1e0a87aabbc2 100644
--- a/packages/core-js/modules/es.array-buffer.is-view.js
+++ b/packages/core-js/modules/es.array-buffer.is-view.js
@@ -4,7 +4,7 @@ var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
 var NATIVE_ARRAY_BUFFER_VIEWS = ArrayBufferViewCore.NATIVE_ARRAY_BUFFER_VIEWS;
 
 // `ArrayBuffer.isView` method
-// https://tc39.github.io/ecma262/#sec-arraybuffer.isview
+// https://tc39.es/ecma262/#sec-arraybuffer.isview
 $({ target: 'ArrayBuffer', stat: true, forced: !NATIVE_ARRAY_BUFFER_VIEWS }, {
   isView: ArrayBufferViewCore.isView
 });
diff --git a/packages/core-js/modules/es.array-buffer.slice.js b/packages/core-js/modules/es.array-buffer.slice.js
index c1375434f6d6..7e75e753b04c 100644
--- a/packages/core-js/modules/es.array-buffer.slice.js
+++ b/packages/core-js/modules/es.array-buffer.slice.js
@@ -16,7 +16,7 @@ var INCORRECT_SLICE = fails(function () {
 });
 
 // `ArrayBuffer.prototype.slice` method
-// https://tc39.github.io/ecma262/#sec-arraybuffer.prototype.slice
+// https://tc39.es/ecma262/#sec-arraybuffer.prototype.slice
 $({ target: 'ArrayBuffer', proto: true, unsafe: true, forced: INCORRECT_SLICE }, {
   slice: function slice(start, end) {
     if (nativeArrayBufferSlice !== undefined && end === undefined) {
diff --git a/packages/core-js/modules/es.array.concat.js b/packages/core-js/modules/es.array.concat.js
index 1c2249909f5f..e2d08032f6d7 100644
--- a/packages/core-js/modules/es.array.concat.js
+++ b/packages/core-js/modules/es.array.concat.js
@@ -35,7 +35,7 @@ var isConcatSpreadable = function (O) {
 var FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;
 
 // `Array.prototype.concat` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.concat
+// https://tc39.es/ecma262/#sec-array.prototype.concat
 // with adding support of @@isConcatSpreadable and @@species
 $({ target: 'Array', proto: true, forced: FORCED }, {
   concat: function concat(arg) { // eslint-disable-line no-unused-vars
diff --git a/packages/core-js/modules/es.array.copy-within.js b/packages/core-js/modules/es.array.copy-within.js
index 1fb0dda49ea6..f6d23ef4507f 100644
--- a/packages/core-js/modules/es.array.copy-within.js
+++ b/packages/core-js/modules/es.array.copy-within.js
@@ -3,10 +3,10 @@ var copyWithin = require('../internals/array-copy-within');
 var addToUnscopables = require('../internals/add-to-unscopables');
 
 // `Array.prototype.copyWithin` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.copywithin
+// https://tc39.es/ecma262/#sec-array.prototype.copywithin
 $({ target: 'Array', proto: true }, {
   copyWithin: copyWithin
 });
 
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables('copyWithin');
diff --git a/packages/core-js/modules/es.array.every.js b/packages/core-js/modules/es.array.every.js
index 231c5c2418e4..137a53763d4b 100644
--- a/packages/core-js/modules/es.array.every.js
+++ b/packages/core-js/modules/es.array.every.js
@@ -8,7 +8,7 @@ var STRICT_METHOD = arrayMethodIsStrict('every');
 var USES_TO_LENGTH = arrayMethodUsesToLength('every');
 
 // `Array.prototype.every` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.every
+// https://tc39.es/ecma262/#sec-array.prototype.every
 $({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, {
   every: function every(callbackfn /* , thisArg */) {
     return $every(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
diff --git a/packages/core-js/modules/es.array.fill.js b/packages/core-js/modules/es.array.fill.js
index ba9f4b46f3b4..297d883ee5db 100644
--- a/packages/core-js/modules/es.array.fill.js
+++ b/packages/core-js/modules/es.array.fill.js
@@ -3,10 +3,10 @@ var fill = require('../internals/array-fill');
 var addToUnscopables = require('../internals/add-to-unscopables');
 
 // `Array.prototype.fill` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.fill
+// https://tc39.es/ecma262/#sec-array.prototype.fill
 $({ target: 'Array', proto: true }, {
   fill: fill
 });
 
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables('fill');
diff --git a/packages/core-js/modules/es.array.filter.js b/packages/core-js/modules/es.array.filter.js
index df2509bc7699..24b963244f0c 100644
--- a/packages/core-js/modules/es.array.filter.js
+++ b/packages/core-js/modules/es.array.filter.js
@@ -9,7 +9,7 @@ var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');
 var USES_TO_LENGTH = arrayMethodUsesToLength('filter');
 
 // `Array.prototype.filter` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.filter
+// https://tc39.es/ecma262/#sec-array.prototype.filter
 // with adding support of @@species
 $({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
   filter: function filter(callbackfn /* , thisArg */) {
diff --git a/packages/core-js/modules/es.array.find-index.js b/packages/core-js/modules/es.array.find-index.js
index 56c0b68fad62..fb00efcfe731 100644
--- a/packages/core-js/modules/es.array.find-index.js
+++ b/packages/core-js/modules/es.array.find-index.js
@@ -13,12 +13,12 @@ var USES_TO_LENGTH = arrayMethodUsesToLength(FIND_INDEX);
 if (FIND_INDEX in []) Array(1)[FIND_INDEX](function () { SKIPS_HOLES = false; });
 
 // `Array.prototype.findIndex` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.findindex
+// https://tc39.es/ecma262/#sec-array.prototype.findindex
 $({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {
   findIndex: function findIndex(callbackfn /* , that = undefined */) {
     return $findIndex(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
   }
 });
 
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables(FIND_INDEX);
diff --git a/packages/core-js/modules/es.array.find.js b/packages/core-js/modules/es.array.find.js
index ad37cc796fee..7cf504db7d89 100644
--- a/packages/core-js/modules/es.array.find.js
+++ b/packages/core-js/modules/es.array.find.js
@@ -13,12 +13,12 @@ var USES_TO_LENGTH = arrayMethodUsesToLength(FIND);
 if (FIND in []) Array(1)[FIND](function () { SKIPS_HOLES = false; });
 
 // `Array.prototype.find` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.find
+// https://tc39.es/ecma262/#sec-array.prototype.find
 $({ target: 'Array', proto: true, forced: SKIPS_HOLES || !USES_TO_LENGTH }, {
   find: function find(callbackfn /* , that = undefined */) {
     return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
   }
 });
 
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables(FIND);
diff --git a/packages/core-js/modules/es.array.flat-map.js b/packages/core-js/modules/es.array.flat-map.js
index 5469beef3e29..f200c2b77aa1 100644
--- a/packages/core-js/modules/es.array.flat-map.js
+++ b/packages/core-js/modules/es.array.flat-map.js
@@ -7,7 +7,7 @@ var aFunction = require('../internals/a-function');
 var arraySpeciesCreate = require('../internals/array-species-create');
 
 // `Array.prototype.flatMap` method
-// https://github.com/tc39/proposal-flatMap
+// https://tc39.es/ecma262/#sec-array.prototype.flatmap
 $({ target: 'Array', proto: true }, {
   flatMap: function flatMap(callbackfn /* , thisArg */) {
     var O = toObject(this);
diff --git a/packages/core-js/modules/es.array.flat.js b/packages/core-js/modules/es.array.flat.js
index cb2c9d75355e..f6c866d626b0 100644
--- a/packages/core-js/modules/es.array.flat.js
+++ b/packages/core-js/modules/es.array.flat.js
@@ -7,7 +7,7 @@ var toInteger = require('../internals/to-integer');
 var arraySpeciesCreate = require('../internals/array-species-create');
 
 // `Array.prototype.flat` method
-// https://github.com/tc39/proposal-flatMap
+// https://tc39.es/ecma262/#sec-array.prototype.flat
 $({ target: 'Array', proto: true }, {
   flat: function flat(/* depthArg = 1 */) {
     var depthArg = arguments.length ? arguments[0] : undefined;
diff --git a/packages/core-js/modules/es.array.for-each.js b/packages/core-js/modules/es.array.for-each.js
index 4fb29d073018..0c7203d595cd 100644
--- a/packages/core-js/modules/es.array.for-each.js
+++ b/packages/core-js/modules/es.array.for-each.js
@@ -3,7 +3,7 @@ var $ = require('../internals/export');
 var forEach = require('../internals/array-for-each');
 
 // `Array.prototype.forEach` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.foreach
+// https://tc39.es/ecma262/#sec-array.prototype.foreach
 $({ target: 'Array', proto: true, forced: [].forEach != forEach }, {
   forEach: forEach
 });
diff --git a/packages/core-js/modules/es.array.from.js b/packages/core-js/modules/es.array.from.js
index 5c21cbca9788..b565cda456e0 100644
--- a/packages/core-js/modules/es.array.from.js
+++ b/packages/core-js/modules/es.array.from.js
@@ -7,7 +7,7 @@ var INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {
 });
 
 // `Array.from` method
-// https://tc39.github.io/ecma262/#sec-array.from
+// https://tc39.es/ecma262/#sec-array.from
 $({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {
   from: from
 });
diff --git a/packages/core-js/modules/es.array.includes.js b/packages/core-js/modules/es.array.includes.js
index 003655699d15..ef53a1c6b7f7 100644
--- a/packages/core-js/modules/es.array.includes.js
+++ b/packages/core-js/modules/es.array.includes.js
@@ -7,12 +7,12 @@ var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length'
 var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
 
 // `Array.prototype.includes` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.includes
+// https://tc39.es/ecma262/#sec-array.prototype.includes
 $({ target: 'Array', proto: true, forced: !USES_TO_LENGTH }, {
   includes: function includes(el /* , fromIndex = 0 */) {
     return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
   }
 });
 
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables('includes');
diff --git a/packages/core-js/modules/es.array.index-of.js b/packages/core-js/modules/es.array.index-of.js
index 5a1442b394d1..50c0a4d88d4e 100644
--- a/packages/core-js/modules/es.array.index-of.js
+++ b/packages/core-js/modules/es.array.index-of.js
@@ -11,7 +11,7 @@ var STRICT_METHOD = arrayMethodIsStrict('indexOf');
 var USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });
 
 // `Array.prototype.indexOf` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.indexof
+// https://tc39.es/ecma262/#sec-array.prototype.indexof
 $({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH }, {
   indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
     return NEGATIVE_ZERO
diff --git a/packages/core-js/modules/es.array.is-array.js b/packages/core-js/modules/es.array.is-array.js
index b77fad6a0dc2..287a5f403ea0 100644
--- a/packages/core-js/modules/es.array.is-array.js
+++ b/packages/core-js/modules/es.array.is-array.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var isArray = require('../internals/is-array');
 
 // `Array.isArray` method
-// https://tc39.github.io/ecma262/#sec-array.isarray
+// https://tc39.es/ecma262/#sec-array.isarray
 $({ target: 'Array', stat: true }, {
   isArray: isArray
 });
diff --git a/packages/core-js/modules/es.array.iterator.js b/packages/core-js/modules/es.array.iterator.js
index 5e6442269907..e7b5999d86de 100644
--- a/packages/core-js/modules/es.array.iterator.js
+++ b/packages/core-js/modules/es.array.iterator.js
@@ -10,15 +10,15 @@ var setInternalState = InternalStateModule.set;
 var getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);
 
 // `Array.prototype.entries` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.entries
+// https://tc39.es/ecma262/#sec-array.prototype.entries
 // `Array.prototype.keys` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.keys
+// https://tc39.es/ecma262/#sec-array.prototype.keys
 // `Array.prototype.values` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.values
+// https://tc39.es/ecma262/#sec-array.prototype.values
 // `Array.prototype[@@iterator]` method
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@iterator
+// https://tc39.es/ecma262/#sec-array.prototype-@@iterator
 // `CreateArrayIterator` internal method
-// https://tc39.github.io/ecma262/#sec-createarrayiterator
+// https://tc39.es/ecma262/#sec-createarrayiterator
 module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
   setInternalState(this, {
     type: ARRAY_ITERATOR,
@@ -27,7 +27,7 @@ module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
     kind: kind                         // kind
   });
 // `%ArrayIteratorPrototype%.next` method
-// https://tc39.github.io/ecma262/#sec-%arrayiteratorprototype%.next
+// https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
 }, function () {
   var state = getInternalState(this);
   var target = state.target;
@@ -43,11 +43,11 @@ module.exports = defineIterator(Array, 'Array', function (iterated, kind) {
 }, 'values');
 
 // argumentsList[@@iterator] is %ArrayProto_values%
-// https://tc39.github.io/ecma262/#sec-createunmappedargumentsobject
-// https://tc39.github.io/ecma262/#sec-createmappedargumentsobject
+// https://tc39.es/ecma262/#sec-createunmappedargumentsobject
+// https://tc39.es/ecma262/#sec-createmappedargumentsobject
 Iterators.Arguments = Iterators.Array;
 
-// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables('keys');
 addToUnscopables('values');
 addToUnscopables('entries');
diff --git a/packages/core-js/modules/es.array.join.js b/packages/core-js/modules/es.array.join.js
index 79ad8d2657aa..4ca28940f259 100644
--- a/packages/core-js/modules/es.array.join.js
+++ b/packages/core-js/modules/es.array.join.js
@@ -10,7 +10,7 @@ var ES3_STRINGS = IndexedObject != Object;
 var STRICT_METHOD = arrayMethodIsStrict('join', ',');
 
 // `Array.prototype.join` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.join
+// https://tc39.es/ecma262/#sec-array.prototype.join
 $({ target: 'Array', proto: true, forced: ES3_STRINGS || !STRICT_METHOD }, {
   join: function join(separator) {
     return nativeJoin.call(toIndexedObject(this), separator === undefined ? ',' : separator);
diff --git a/packages/core-js/modules/es.array.last-index-of.js b/packages/core-js/modules/es.array.last-index-of.js
index d2090551b114..95431fb27984 100644
--- a/packages/core-js/modules/es.array.last-index-of.js
+++ b/packages/core-js/modules/es.array.last-index-of.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var lastIndexOf = require('../internals/array-last-index-of');
 
 // `Array.prototype.lastIndexOf` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.lastindexof
+// https://tc39.es/ecma262/#sec-array.prototype.lastindexof
 $({ target: 'Array', proto: true, forced: lastIndexOf !== [].lastIndexOf }, {
   lastIndexOf: lastIndexOf
 });
diff --git a/packages/core-js/modules/es.array.map.js b/packages/core-js/modules/es.array.map.js
index f9a8cdfe52cc..5b58c33f8d75 100644
--- a/packages/core-js/modules/es.array.map.js
+++ b/packages/core-js/modules/es.array.map.js
@@ -9,7 +9,7 @@ var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');
 var USES_TO_LENGTH = arrayMethodUsesToLength('map');
 
 // `Array.prototype.map` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.map
+// https://tc39.es/ecma262/#sec-array.prototype.map
 // with adding support of @@species
 $({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
   map: function map(callbackfn /* , thisArg */) {
diff --git a/packages/core-js/modules/es.array.of.js b/packages/core-js/modules/es.array.of.js
index 2788091b3cf3..3bbba0f2b38d 100644
--- a/packages/core-js/modules/es.array.of.js
+++ b/packages/core-js/modules/es.array.of.js
@@ -9,7 +9,7 @@ var ISNT_GENERIC = fails(function () {
 });
 
 // `Array.of` method
-// https://tc39.github.io/ecma262/#sec-array.of
+// https://tc39.es/ecma262/#sec-array.of
 // WebKit Array.of isn't generic
 $({ target: 'Array', stat: true, forced: ISNT_GENERIC }, {
   of: function of(/* ...args */) {
diff --git a/packages/core-js/modules/es.array.reduce-right.js b/packages/core-js/modules/es.array.reduce-right.js
index f11d8d467c26..56a9572ee9e6 100644
--- a/packages/core-js/modules/es.array.reduce-right.js
+++ b/packages/core-js/modules/es.array.reduce-right.js
@@ -14,7 +14,7 @@ var USES_TO_LENGTH = arrayMethodUsesToLength('reduce', { 1: 0 });
 var CHROME_BUG = !IS_NODE && CHROME_VERSION > 79 && CHROME_VERSION < 83;
 
 // `Array.prototype.reduceRight` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.reduceright
+// https://tc39.es/ecma262/#sec-array.prototype.reduceright
 $({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH || CHROME_BUG }, {
   reduceRight: function reduceRight(callbackfn /* , initialValue */) {
     return $reduceRight(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
diff --git a/packages/core-js/modules/es.array.reduce.js b/packages/core-js/modules/es.array.reduce.js
index 3d66308b01f8..d820dd51a6e2 100644
--- a/packages/core-js/modules/es.array.reduce.js
+++ b/packages/core-js/modules/es.array.reduce.js
@@ -13,7 +13,7 @@ var USES_TO_LENGTH = arrayMethodUsesToLength('reduce', { 1: 0 });
 var CHROME_BUG = !IS_NODE && CHROME_VERSION > 79 && CHROME_VERSION < 83;
 
 // `Array.prototype.reduce` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.reduce
+// https://tc39.es/ecma262/#sec-array.prototype.reduce
 $({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH || CHROME_BUG }, {
   reduce: function reduce(callbackfn /* , initialValue */) {
     return $reduce(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
diff --git a/packages/core-js/modules/es.array.reverse.js b/packages/core-js/modules/es.array.reverse.js
index bfe96d55a882..038137715fc2 100644
--- a/packages/core-js/modules/es.array.reverse.js
+++ b/packages/core-js/modules/es.array.reverse.js
@@ -6,7 +6,7 @@ var nativeReverse = [].reverse;
 var test = [1, 2];
 
 // `Array.prototype.reverse` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.reverse
+// https://tc39.es/ecma262/#sec-array.prototype.reverse
 // fix for Safari 12.0 bug
 // https://bugs.webkit.org/show_bug.cgi?id=188794
 $({ target: 'Array', proto: true, forced: String(test) === String(test.reverse()) }, {
diff --git a/packages/core-js/modules/es.array.slice.js b/packages/core-js/modules/es.array.slice.js
index 27609f535844..504030fe61ab 100644
--- a/packages/core-js/modules/es.array.slice.js
+++ b/packages/core-js/modules/es.array.slice.js
@@ -18,7 +18,7 @@ var nativeSlice = [].slice;
 var max = Math.max;
 
 // `Array.prototype.slice` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.slice
+// https://tc39.es/ecma262/#sec-array.prototype.slice
 // fallback for not array-like ES3 strings and DOM objects
 $({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
   slice: function slice(start, end) {
diff --git a/packages/core-js/modules/es.array.some.js b/packages/core-js/modules/es.array.some.js
index e143d07e666a..b557b637f322 100644
--- a/packages/core-js/modules/es.array.some.js
+++ b/packages/core-js/modules/es.array.some.js
@@ -8,7 +8,7 @@ var STRICT_METHOD = arrayMethodIsStrict('some');
 var USES_TO_LENGTH = arrayMethodUsesToLength('some');
 
 // `Array.prototype.some` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.some
+// https://tc39.es/ecma262/#sec-array.prototype.some
 $({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, {
   some: function some(callbackfn /* , thisArg */) {
     return $some(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
diff --git a/packages/core-js/modules/es.array.sort.js b/packages/core-js/modules/es.array.sort.js
index 1b46f51562aa..fd36157804a2 100644
--- a/packages/core-js/modules/es.array.sort.js
+++ b/packages/core-js/modules/es.array.sort.js
@@ -22,7 +22,7 @@ var STRICT_METHOD = arrayMethodIsStrict('sort');
 var FORCED = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD;
 
 // `Array.prototype.sort` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.sort
+// https://tc39.es/ecma262/#sec-array.prototype.sort
 $({ target: 'Array', proto: true, forced: FORCED }, {
   sort: function sort(comparefn) {
     return comparefn === undefined
diff --git a/packages/core-js/modules/es.array.species.js b/packages/core-js/modules/es.array.species.js
index a0e78299f73e..dafed2eb92ca 100644
--- a/packages/core-js/modules/es.array.species.js
+++ b/packages/core-js/modules/es.array.species.js
@@ -1,5 +1,5 @@
 var setSpecies = require('../internals/set-species');
 
 // `Array[@@species]` getter
-// https://tc39.github.io/ecma262/#sec-get-array-@@species
+// https://tc39.es/ecma262/#sec-get-array-@@species
 setSpecies('Array');
diff --git a/packages/core-js/modules/es.array.splice.js b/packages/core-js/modules/es.array.splice.js
index 31debcac1f9e..5712f65c173d 100644
--- a/packages/core-js/modules/es.array.splice.js
+++ b/packages/core-js/modules/es.array.splice.js
@@ -18,7 +18,7 @@ var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;
 var MAXIMUM_ALLOWED_LENGTH_EXCEEDED = 'Maximum allowed length exceeded';
 
 // `Array.prototype.splice` method
-// https://tc39.github.io/ecma262/#sec-array.prototype.splice
+// https://tc39.es/ecma262/#sec-array.prototype.splice
 // with adding support of @@species
 $({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {
   splice: function splice(start, deleteCount /* , ...items */) {
diff --git a/packages/core-js/modules/es.array.unscopables.flat-map.js b/packages/core-js/modules/es.array.unscopables.flat-map.js
index 593cf055cf8c..3ba8446e1e41 100644
--- a/packages/core-js/modules/es.array.unscopables.flat-map.js
+++ b/packages/core-js/modules/es.array.unscopables.flat-map.js
@@ -2,4 +2,5 @@
 // in popular engines, so it's moved to a separate module
 var addToUnscopables = require('../internals/add-to-unscopables');
 
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables('flatMap');
diff --git a/packages/core-js/modules/es.array.unscopables.flat.js b/packages/core-js/modules/es.array.unscopables.flat.js
index ce6656c312e8..fcf7ecfc1307 100644
--- a/packages/core-js/modules/es.array.unscopables.flat.js
+++ b/packages/core-js/modules/es.array.unscopables.flat.js
@@ -2,4 +2,5 @@
 // in popular engines, so it's moved to a separate module
 var addToUnscopables = require('../internals/add-to-unscopables');
 
+// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
 addToUnscopables('flat');
diff --git a/packages/core-js/modules/es.data-view.js b/packages/core-js/modules/es.data-view.js
index a45ac41134e8..7f1371cbb3f7 100644
--- a/packages/core-js/modules/es.data-view.js
+++ b/packages/core-js/modules/es.data-view.js
@@ -3,7 +3,7 @@ var ArrayBufferModule = require('../internals/array-buffer');
 var NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');
 
 // `DataView` constructor
-// https://tc39.github.io/ecma262/#sec-dataview-constructor
+// https://tc39.es/ecma262/#sec-dataview-constructor
 $({ global: true, forced: !NATIVE_ARRAY_BUFFER }, {
   DataView: ArrayBufferModule.DataView
 });
diff --git a/packages/core-js/modules/es.date.now.js b/packages/core-js/modules/es.date.now.js
index c4dc75b09ebd..4613f078e09a 100644
--- a/packages/core-js/modules/es.date.now.js
+++ b/packages/core-js/modules/es.date.now.js
@@ -1,7 +1,7 @@
 var $ = require('../internals/export');
 
 // `Date.now` method
-// https://tc39.github.io/ecma262/#sec-date.now
+// https://tc39.es/ecma262/#sec-date.now
 $({ target: 'Date', stat: true }, {
   now: function now() {
     return new Date().getTime();
diff --git a/packages/core-js/modules/es.date.to-iso-string.js b/packages/core-js/modules/es.date.to-iso-string.js
index 14f8ae0b76c7..c6bf12222bda 100644
--- a/packages/core-js/modules/es.date.to-iso-string.js
+++ b/packages/core-js/modules/es.date.to-iso-string.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var toISOString = require('../internals/date-to-iso-string');
 
 // `Date.prototype.toISOString` method
-// https://tc39.github.io/ecma262/#sec-date.prototype.toisostring
+// https://tc39.es/ecma262/#sec-date.prototype.toisostring
 // PhantomJS / old WebKit has a broken implementations
 $({ target: 'Date', proto: true, forced: Date.prototype.toISOString !== toISOString }, {
   toISOString: toISOString
diff --git a/packages/core-js/modules/es.date.to-json.js b/packages/core-js/modules/es.date.to-json.js
index bcf45175f58a..472028fb22e1 100644
--- a/packages/core-js/modules/es.date.to-json.js
+++ b/packages/core-js/modules/es.date.to-json.js
@@ -10,7 +10,7 @@ var FORCED = fails(function () {
 });
 
 // `Date.prototype.toJSON` method
-// https://tc39.github.io/ecma262/#sec-date.prototype.tojson
+// https://tc39.es/ecma262/#sec-date.prototype.tojson
 $({ target: 'Date', proto: true, forced: FORCED }, {
   // eslint-disable-next-line no-unused-vars
   toJSON: function toJSON(key) {
diff --git a/packages/core-js/modules/es.date.to-primitive.js b/packages/core-js/modules/es.date.to-primitive.js
index 68dc59f58c85..6fc13053074e 100644
--- a/packages/core-js/modules/es.date.to-primitive.js
+++ b/packages/core-js/modules/es.date.to-primitive.js
@@ -6,7 +6,7 @@ var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
 var DatePrototype = Date.prototype;
 
 // `Date.prototype[@@toPrimitive]` method
-// https://tc39.github.io/ecma262/#sec-date.prototype-@@toprimitive
+// https://tc39.es/ecma262/#sec-date.prototype-@@toprimitive
 if (!(TO_PRIMITIVE in DatePrototype)) {
   createNonEnumerableProperty(DatePrototype, TO_PRIMITIVE, dateToPrimitive);
 }
diff --git a/packages/core-js/modules/es.date.to-string.js b/packages/core-js/modules/es.date.to-string.js
index dc28f0ad93fa..5e31d441940b 100644
--- a/packages/core-js/modules/es.date.to-string.js
+++ b/packages/core-js/modules/es.date.to-string.js
@@ -7,7 +7,7 @@ var nativeDateToString = DatePrototype[TO_STRING];
 var getTime = DatePrototype.getTime;
 
 // `Date.prototype.toString` method
-// https://tc39.github.io/ecma262/#sec-date.prototype.tostring
+// https://tc39.es/ecma262/#sec-date.prototype.tostring
 if (new Date(NaN) + '' != INVALID_DATE) {
   redefine(DatePrototype, TO_STRING, function toString() {
     var value = getTime.call(this);
diff --git a/packages/core-js/modules/es.function.bind.js b/packages/core-js/modules/es.function.bind.js
index fb33e969f15d..078daf621fc6 100644
--- a/packages/core-js/modules/es.function.bind.js
+++ b/packages/core-js/modules/es.function.bind.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var bind = require('../internals/function-bind');
 
 // `Function.prototype.bind` method
-// https://tc39.github.io/ecma262/#sec-function.prototype.bind
+// https://tc39.es/ecma262/#sec-function.prototype.bind
 $({ target: 'Function', proto: true }, {
   bind: bind
 });
diff --git a/packages/core-js/modules/es.function.has-instance.js b/packages/core-js/modules/es.function.has-instance.js
index 01383bd9e780..996c8f88b557 100644
--- a/packages/core-js/modules/es.function.has-instance.js
+++ b/packages/core-js/modules/es.function.has-instance.js
@@ -8,7 +8,7 @@ var HAS_INSTANCE = wellKnownSymbol('hasInstance');
 var FunctionPrototype = Function.prototype;
 
 // `Function.prototype[@@hasInstance]` method
-// https://tc39.github.io/ecma262/#sec-function.prototype-@@hasinstance
+// https://tc39.es/ecma262/#sec-function.prototype-@@hasinstance
 if (!(HAS_INSTANCE in FunctionPrototype)) {
   definePropertyModule.f(FunctionPrototype, HAS_INSTANCE, { value: function (O) {
     if (typeof this != 'function' || !isObject(O)) return false;
diff --git a/packages/core-js/modules/es.function.name.js b/packages/core-js/modules/es.function.name.js
index 2312d91ddd7f..d7ab97d82ea9 100644
--- a/packages/core-js/modules/es.function.name.js
+++ b/packages/core-js/modules/es.function.name.js
@@ -7,7 +7,7 @@ var nameRE = /^\s*function ([^ (]*)/;
 var NAME = 'name';
 
 // Function instances `.name` property
-// https://tc39.github.io/ecma262/#sec-function-instances-name
+// https://tc39.es/ecma262/#sec-function-instances-name
 if (DESCRIPTORS && !(NAME in FunctionPrototype)) {
   defineProperty(FunctionPrototype, NAME, {
     configurable: true,
diff --git a/packages/core-js/modules/es.global-this.js b/packages/core-js/modules/es.global-this.js
index 7e925c8753e1..b9641cd2a787 100644
--- a/packages/core-js/modules/es.global-this.js
+++ b/packages/core-js/modules/es.global-this.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var global = require('../internals/global');
 
 // `globalThis` object
-// https://github.com/tc39/proposal-global
+// https://tc39.es/ecma262/#sec-globalthis
 $({ global: true }, {
   globalThis: global
 });
diff --git a/packages/core-js/modules/es.json.stringify.js b/packages/core-js/modules/es.json.stringify.js
index 56ba89ff9a3b..574ce86abb97 100644
--- a/packages/core-js/modules/es.json.stringify.js
+++ b/packages/core-js/modules/es.json.stringify.js
@@ -21,6 +21,8 @@ var FORCED = fails(function () {
 });
 
 if ($stringify) {
+  // `JSON.stringify` method
+  // https://tc39.es/ecma262/#sec-json.stringify
   // https://github.com/tc39/proposal-well-formed-stringify
   $({ target: 'JSON', stat: true, forced: FORCED }, {
     // eslint-disable-next-line no-unused-vars
diff --git a/packages/core-js/modules/es.json.to-string-tag.js b/packages/core-js/modules/es.json.to-string-tag.js
index bdfa0cd81041..5df4d6104a06 100644
--- a/packages/core-js/modules/es.json.to-string-tag.js
+++ b/packages/core-js/modules/es.json.to-string-tag.js
@@ -2,5 +2,5 @@ var global = require('../internals/global');
 var setToStringTag = require('../internals/set-to-string-tag');
 
 // JSON[@@toStringTag] property
-// https://tc39.github.io/ecma262/#sec-json-@@tostringtag
+// https://tc39.es/ecma262/#sec-json-@@tostringtag
 setToStringTag(global.JSON, 'JSON', true);
diff --git a/packages/core-js/modules/es.map.js b/packages/core-js/modules/es.map.js
index fa8ecce40f50..6c555c653d95 100644
--- a/packages/core-js/modules/es.map.js
+++ b/packages/core-js/modules/es.map.js
@@ -3,7 +3,7 @@ var collection = require('../internals/collection');
 var collectionStrong = require('../internals/collection-strong');
 
 // `Map` constructor
-// https://tc39.github.io/ecma262/#sec-map-objects
+// https://tc39.es/ecma262/#sec-map-objects
 module.exports = collection('Map', function (init) {
   return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };
 }, collectionStrong);
diff --git a/packages/core-js/modules/es.math.acosh.js b/packages/core-js/modules/es.math.acosh.js
index 62c85a4c339a..7e0752760721 100644
--- a/packages/core-js/modules/es.math.acosh.js
+++ b/packages/core-js/modules/es.math.acosh.js
@@ -13,7 +13,7 @@ var FORCED = !nativeAcosh
   || nativeAcosh(Infinity) != Infinity;
 
 // `Math.acosh` method
-// https://tc39.github.io/ecma262/#sec-math.acosh
+// https://tc39.es/ecma262/#sec-math.acosh
 $({ target: 'Math', stat: true, forced: FORCED }, {
   acosh: function acosh(x) {
     return (x = +x) < 1 ? NaN : x > 94906265.62425156
diff --git a/packages/core-js/modules/es.math.asinh.js b/packages/core-js/modules/es.math.asinh.js
index 9308e2186d65..a2a6878f25c7 100644
--- a/packages/core-js/modules/es.math.asinh.js
+++ b/packages/core-js/modules/es.math.asinh.js
@@ -9,7 +9,7 @@ function asinh(x) {
 }
 
 // `Math.asinh` method
-// https://tc39.github.io/ecma262/#sec-math.asinh
+// https://tc39.es/ecma262/#sec-math.asinh
 // Tor Browser bug: Math.asinh(0) -> -0
 $({ target: 'Math', stat: true, forced: !(nativeAsinh && 1 / nativeAsinh(0) > 0) }, {
   asinh: asinh
diff --git a/packages/core-js/modules/es.math.atanh.js b/packages/core-js/modules/es.math.atanh.js
index 9116f8e4834c..e5a57cae064c 100644
--- a/packages/core-js/modules/es.math.atanh.js
+++ b/packages/core-js/modules/es.math.atanh.js
@@ -4,7 +4,7 @@ var nativeAtanh = Math.atanh;
 var log = Math.log;
 
 // `Math.atanh` method
-// https://tc39.github.io/ecma262/#sec-math.atanh
+// https://tc39.es/ecma262/#sec-math.atanh
 // Tor Browser bug: Math.atanh(-0) -> 0
 $({ target: 'Math', stat: true, forced: !(nativeAtanh && 1 / nativeAtanh(-0) < 0) }, {
   atanh: function atanh(x) {
diff --git a/packages/core-js/modules/es.math.cbrt.js b/packages/core-js/modules/es.math.cbrt.js
index b93416f9cc34..034dd3422716 100644
--- a/packages/core-js/modules/es.math.cbrt.js
+++ b/packages/core-js/modules/es.math.cbrt.js
@@ -5,7 +5,7 @@ var abs = Math.abs;
 var pow = Math.pow;
 
 // `Math.cbrt` method
-// https://tc39.github.io/ecma262/#sec-math.cbrt
+// https://tc39.es/ecma262/#sec-math.cbrt
 $({ target: 'Math', stat: true }, {
   cbrt: function cbrt(x) {
     return sign(x = +x) * pow(abs(x), 1 / 3);
diff --git a/packages/core-js/modules/es.math.clz32.js b/packages/core-js/modules/es.math.clz32.js
index 7a18e64af6a2..9adbaed52135 100644
--- a/packages/core-js/modules/es.math.clz32.js
+++ b/packages/core-js/modules/es.math.clz32.js
@@ -5,7 +5,7 @@ var log = Math.log;
 var LOG2E = Math.LOG2E;
 
 // `Math.clz32` method
-// https://tc39.github.io/ecma262/#sec-math.clz32
+// https://tc39.es/ecma262/#sec-math.clz32
 $({ target: 'Math', stat: true }, {
   clz32: function clz32(x) {
     return (x >>>= 0) ? 31 - floor(log(x + 0.5) * LOG2E) : 32;
diff --git a/packages/core-js/modules/es.math.cosh.js b/packages/core-js/modules/es.math.cosh.js
index 0c7322a2f8d8..5a5eeb50a8ca 100644
--- a/packages/core-js/modules/es.math.cosh.js
+++ b/packages/core-js/modules/es.math.cosh.js
@@ -6,7 +6,7 @@ var abs = Math.abs;
 var E = Math.E;
 
 // `Math.cosh` method
-// https://tc39.github.io/ecma262/#sec-math.cosh
+// https://tc39.es/ecma262/#sec-math.cosh
 $({ target: 'Math', stat: true, forced: !nativeCosh || nativeCosh(710) === Infinity }, {
   cosh: function cosh(x) {
     var t = expm1(abs(x) - 1) + 1;
diff --git a/packages/core-js/modules/es.math.expm1.js b/packages/core-js/modules/es.math.expm1.js
index 956eb6f129f1..7c755fc8e4c7 100644
--- a/packages/core-js/modules/es.math.expm1.js
+++ b/packages/core-js/modules/es.math.expm1.js
@@ -2,5 +2,5 @@ var $ = require('../internals/export');
 var expm1 = require('../internals/math-expm1');
 
 // `Math.expm1` method
-// https://tc39.github.io/ecma262/#sec-math.expm1
+// https://tc39.es/ecma262/#sec-math.expm1
 $({ target: 'Math', stat: true, forced: expm1 != Math.expm1 }, { expm1: expm1 });
diff --git a/packages/core-js/modules/es.math.fround.js b/packages/core-js/modules/es.math.fround.js
index 5df62db8b0c2..4b9edf280f84 100644
--- a/packages/core-js/modules/es.math.fround.js
+++ b/packages/core-js/modules/es.math.fround.js
@@ -2,5 +2,5 @@ var $ = require('../internals/export');
 var fround = require('../internals/math-fround');
 
 // `Math.fround` method
-// https://tc39.github.io/ecma262/#sec-math.fround
+// https://tc39.es/ecma262/#sec-math.fround
 $({ target: 'Math', stat: true }, { fround: fround });
diff --git a/packages/core-js/modules/es.math.hypot.js b/packages/core-js/modules/es.math.hypot.js
index 0e8d17b46d41..3a15c77e7dd2 100644
--- a/packages/core-js/modules/es.math.hypot.js
+++ b/packages/core-js/modules/es.math.hypot.js
@@ -9,7 +9,7 @@ var sqrt = Math.sqrt;
 var BUGGY = !!$hypot && $hypot(Infinity, NaN) !== Infinity;
 
 // `Math.hypot` method
-// https://tc39.github.io/ecma262/#sec-math.hypot
+// https://tc39.es/ecma262/#sec-math.hypot
 $({ target: 'Math', stat: true, forced: BUGGY }, {
   hypot: function hypot(value1, value2) { // eslint-disable-line no-unused-vars
     var sum = 0;
diff --git a/packages/core-js/modules/es.math.imul.js b/packages/core-js/modules/es.math.imul.js
index 3882a3e3a228..6cfe7179eb56 100644
--- a/packages/core-js/modules/es.math.imul.js
+++ b/packages/core-js/modules/es.math.imul.js
@@ -8,7 +8,7 @@ var FORCED = fails(function () {
 });
 
 // `Math.imul` method
-// https://tc39.github.io/ecma262/#sec-math.imul
+// https://tc39.es/ecma262/#sec-math.imul
 // some WebKit versions fails with big numbers, some has wrong arity
 $({ target: 'Math', stat: true, forced: FORCED }, {
   imul: function imul(x, y) {
diff --git a/packages/core-js/modules/es.math.log10.js b/packages/core-js/modules/es.math.log10.js
index 86ba3db42484..407880baf249 100644
--- a/packages/core-js/modules/es.math.log10.js
+++ b/packages/core-js/modules/es.math.log10.js
@@ -4,7 +4,7 @@ var log = Math.log;
 var LOG10E = Math.LOG10E;
 
 // `Math.log10` method
-// https://tc39.github.io/ecma262/#sec-math.log10
+// https://tc39.es/ecma262/#sec-math.log10
 $({ target: 'Math', stat: true }, {
   log10: function log10(x) {
     return log(x) * LOG10E;
diff --git a/packages/core-js/modules/es.math.log1p.js b/packages/core-js/modules/es.math.log1p.js
index 03276618444d..6611532b0c85 100644
--- a/packages/core-js/modules/es.math.log1p.js
+++ b/packages/core-js/modules/es.math.log1p.js
@@ -2,5 +2,5 @@ var $ = require('../internals/export');
 var log1p = require('../internals/math-log1p');
 
 // `Math.log1p` method
-// https://tc39.github.io/ecma262/#sec-math.log1p
+// https://tc39.es/ecma262/#sec-math.log1p
 $({ target: 'Math', stat: true }, { log1p: log1p });
diff --git a/packages/core-js/modules/es.math.log2.js b/packages/core-js/modules/es.math.log2.js
index 22fcedf4f161..3c43ae698332 100644
--- a/packages/core-js/modules/es.math.log2.js
+++ b/packages/core-js/modules/es.math.log2.js
@@ -4,7 +4,7 @@ var log = Math.log;
 var LN2 = Math.LN2;
 
 // `Math.log2` method
-// https://tc39.github.io/ecma262/#sec-math.log2
+// https://tc39.es/ecma262/#sec-math.log2
 $({ target: 'Math', stat: true }, {
   log2: function log2(x) {
     return log(x) / LN2;
diff --git a/packages/core-js/modules/es.math.sign.js b/packages/core-js/modules/es.math.sign.js
index 19e3a782d3d2..0d7b137de934 100644
--- a/packages/core-js/modules/es.math.sign.js
+++ b/packages/core-js/modules/es.math.sign.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var sign = require('../internals/math-sign');
 
 // `Math.sign` method
-// https://tc39.github.io/ecma262/#sec-math.sign
+// https://tc39.es/ecma262/#sec-math.sign
 $({ target: 'Math', stat: true }, {
   sign: sign
 });
diff --git a/packages/core-js/modules/es.math.sinh.js b/packages/core-js/modules/es.math.sinh.js
index 11ba610675f8..95ff8d1289ec 100644
--- a/packages/core-js/modules/es.math.sinh.js
+++ b/packages/core-js/modules/es.math.sinh.js
@@ -11,7 +11,7 @@ var FORCED = fails(function () {
 });
 
 // `Math.sinh` method
-// https://tc39.github.io/ecma262/#sec-math.sinh
+// https://tc39.es/ecma262/#sec-math.sinh
 // V8 near Chromium 38 has a problem with very small numbers
 $({ target: 'Math', stat: true, forced: FORCED }, {
   sinh: function sinh(x) {
diff --git a/packages/core-js/modules/es.math.tanh.js b/packages/core-js/modules/es.math.tanh.js
index 3b574020ba9d..df909dde17e2 100644
--- a/packages/core-js/modules/es.math.tanh.js
+++ b/packages/core-js/modules/es.math.tanh.js
@@ -4,7 +4,7 @@ var expm1 = require('../internals/math-expm1');
 var exp = Math.exp;
 
 // `Math.tanh` method
-// https://tc39.github.io/ecma262/#sec-math.tanh
+// https://tc39.es/ecma262/#sec-math.tanh
 $({ target: 'Math', stat: true }, {
   tanh: function tanh(x) {
     var a = expm1(x = +x);
diff --git a/packages/core-js/modules/es.math.to-string-tag.js b/packages/core-js/modules/es.math.to-string-tag.js
index 4ab08116d6db..97c943fb449b 100644
--- a/packages/core-js/modules/es.math.to-string-tag.js
+++ b/packages/core-js/modules/es.math.to-string-tag.js
@@ -1,5 +1,5 @@
 var setToStringTag = require('../internals/set-to-string-tag');
 
 // Math[@@toStringTag] property
-// https://tc39.github.io/ecma262/#sec-math-@@tostringtag
+// https://tc39.es/ecma262/#sec-math-@@tostringtag
 setToStringTag(Math, 'Math', true);
diff --git a/packages/core-js/modules/es.math.trunc.js b/packages/core-js/modules/es.math.trunc.js
index 0e8351d914b6..e8c5a3baab0e 100644
--- a/packages/core-js/modules/es.math.trunc.js
+++ b/packages/core-js/modules/es.math.trunc.js
@@ -4,7 +4,7 @@ var ceil = Math.ceil;
 var floor = Math.floor;
 
 // `Math.trunc` method
-// https://tc39.github.io/ecma262/#sec-math.trunc
+// https://tc39.es/ecma262/#sec-math.trunc
 $({ target: 'Math', stat: true }, {
   trunc: function trunc(it) {
     return (it > 0 ? floor : ceil)(it);
diff --git a/packages/core-js/modules/es.number.constructor.js b/packages/core-js/modules/es.number.constructor.js
index 37fdbbc963fe..5278dbf6f18d 100644
--- a/packages/core-js/modules/es.number.constructor.js
+++ b/packages/core-js/modules/es.number.constructor.js
@@ -22,7 +22,7 @@ var NumberPrototype = NativeNumber.prototype;
 var BROKEN_CLASSOF = classof(create(NumberPrototype)) == NUMBER;
 
 // `ToNumber` abstract operation
-// https://tc39.github.io/ecma262/#sec-tonumber
+// https://tc39.es/ecma262/#sec-tonumber
 var toNumber = function (argument) {
   var it = toPrimitive(argument, false);
   var first, third, radix, maxCode, digits, length, index, code;
@@ -51,7 +51,7 @@ var toNumber = function (argument) {
 };
 
 // `Number` constructor
-// https://tc39.github.io/ecma262/#sec-number-constructor
+// https://tc39.es/ecma262/#sec-number-constructor
 if (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {
   var NumberWrapper = function Number(value) {
     var it = arguments.length < 1 ? 0 : value;
diff --git a/packages/core-js/modules/es.number.epsilon.js b/packages/core-js/modules/es.number.epsilon.js
index b60272493f0e..1aba47d0f893 100644
--- a/packages/core-js/modules/es.number.epsilon.js
+++ b/packages/core-js/modules/es.number.epsilon.js
@@ -1,7 +1,7 @@
 var $ = require('../internals/export');
 
 // `Number.EPSILON` constant
-// https://tc39.github.io/ecma262/#sec-number.epsilon
+// https://tc39.es/ecma262/#sec-number.epsilon
 $({ target: 'Number', stat: true }, {
   EPSILON: Math.pow(2, -52)
 });
diff --git a/packages/core-js/modules/es.number.is-finite.js b/packages/core-js/modules/es.number.is-finite.js
index 6308eb4d997d..e7480edb583b 100644
--- a/packages/core-js/modules/es.number.is-finite.js
+++ b/packages/core-js/modules/es.number.is-finite.js
@@ -2,5 +2,5 @@ var $ = require('../internals/export');
 var numberIsFinite = require('../internals/number-is-finite');
 
 // `Number.isFinite` method
-// https://tc39.github.io/ecma262/#sec-number.isfinite
+// https://tc39.es/ecma262/#sec-number.isfinite
 $({ target: 'Number', stat: true }, { isFinite: numberIsFinite });
diff --git a/packages/core-js/modules/es.number.is-integer.js b/packages/core-js/modules/es.number.is-integer.js
index b15b7393dee1..45ab3def4df3 100644
--- a/packages/core-js/modules/es.number.is-integer.js
+++ b/packages/core-js/modules/es.number.is-integer.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var isInteger = require('../internals/is-integer');
 
 // `Number.isInteger` method
-// https://tc39.github.io/ecma262/#sec-number.isinteger
+// https://tc39.es/ecma262/#sec-number.isinteger
 $({ target: 'Number', stat: true }, {
   isInteger: isInteger
 });
diff --git a/packages/core-js/modules/es.number.is-nan.js b/packages/core-js/modules/es.number.is-nan.js
index f384acc6783f..a0f026894055 100644
--- a/packages/core-js/modules/es.number.is-nan.js
+++ b/packages/core-js/modules/es.number.is-nan.js
@@ -1,7 +1,7 @@
 var $ = require('../internals/export');
 
 // `Number.isNaN` method
-// https://tc39.github.io/ecma262/#sec-number.isnan
+// https://tc39.es/ecma262/#sec-number.isnan
 $({ target: 'Number', stat: true }, {
   isNaN: function isNaN(number) {
     // eslint-disable-next-line no-self-compare
diff --git a/packages/core-js/modules/es.number.is-safe-integer.js b/packages/core-js/modules/es.number.is-safe-integer.js
index cea6704a18ec..0438b47d0370 100644
--- a/packages/core-js/modules/es.number.is-safe-integer.js
+++ b/packages/core-js/modules/es.number.is-safe-integer.js
@@ -4,7 +4,7 @@ var isInteger = require('../internals/is-integer');
 var abs = Math.abs;
 
 // `Number.isSafeInteger` method
-// https://tc39.github.io/ecma262/#sec-number.issafeinteger
+// https://tc39.es/ecma262/#sec-number.issafeinteger
 $({ target: 'Number', stat: true }, {
   isSafeInteger: function isSafeInteger(number) {
     return isInteger(number) && abs(number) <= 0x1FFFFFFFFFFFFF;
diff --git a/packages/core-js/modules/es.number.max-safe-integer.js b/packages/core-js/modules/es.number.max-safe-integer.js
index 7fc5890262bb..c9fa5a60c829 100644
--- a/packages/core-js/modules/es.number.max-safe-integer.js
+++ b/packages/core-js/modules/es.number.max-safe-integer.js
@@ -1,7 +1,7 @@
 var $ = require('../internals/export');
 
 // `Number.MAX_SAFE_INTEGER` constant
-// https://tc39.github.io/ecma262/#sec-number.max_safe_integer
+// https://tc39.es/ecma262/#sec-number.max_safe_integer
 $({ target: 'Number', stat: true }, {
   MAX_SAFE_INTEGER: 0x1FFFFFFFFFFFFF
 });
diff --git a/packages/core-js/modules/es.number.min-safe-integer.js b/packages/core-js/modules/es.number.min-safe-integer.js
index 500a8f678a26..2c781560ed14 100644
--- a/packages/core-js/modules/es.number.min-safe-integer.js
+++ b/packages/core-js/modules/es.number.min-safe-integer.js
@@ -1,7 +1,7 @@
 var $ = require('../internals/export');
 
 // `Number.MIN_SAFE_INTEGER` constant
-// https://tc39.github.io/ecma262/#sec-number.min_safe_integer
+// https://tc39.es/ecma262/#sec-number.min_safe_integer
 $({ target: 'Number', stat: true }, {
   MIN_SAFE_INTEGER: -0x1FFFFFFFFFFFFF
 });
diff --git a/packages/core-js/modules/es.number.parse-float.js b/packages/core-js/modules/es.number.parse-float.js
index 5310ec1ed7f3..be91ecfd8430 100644
--- a/packages/core-js/modules/es.number.parse-float.js
+++ b/packages/core-js/modules/es.number.parse-float.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var parseFloat = require('../internals/number-parse-float');
 
 // `Number.parseFloat` method
-// https://tc39.github.io/ecma262/#sec-number.parseFloat
+// https://tc39.es/ecma262/#sec-number.parseFloat
 $({ target: 'Number', stat: true, forced: Number.parseFloat != parseFloat }, {
   parseFloat: parseFloat
 });
diff --git a/packages/core-js/modules/es.number.parse-int.js b/packages/core-js/modules/es.number.parse-int.js
index 7f31df1c06e5..e965c4258426 100644
--- a/packages/core-js/modules/es.number.parse-int.js
+++ b/packages/core-js/modules/es.number.parse-int.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var parseInt = require('../internals/number-parse-int');
 
 // `Number.parseInt` method
-// https://tc39.github.io/ecma262/#sec-number.parseint
+// https://tc39.es/ecma262/#sec-number.parseint
 $({ target: 'Number', stat: true, forced: Number.parseInt != parseInt }, {
   parseInt: parseInt
 });
diff --git a/packages/core-js/modules/es.number.to-fixed.js b/packages/core-js/modules/es.number.to-fixed.js
index fa4d3e279d79..4ec949efa557 100644
--- a/packages/core-js/modules/es.number.to-fixed.js
+++ b/packages/core-js/modules/es.number.to-fixed.js
@@ -36,7 +36,7 @@ var FORCED = nativeToFixed && (
 });
 
 // `Number.prototype.toFixed` method
-// https://tc39.github.io/ecma262/#sec-number.prototype.tofixed
+// https://tc39.es/ecma262/#sec-number.prototype.tofixed
 $({ target: 'Number', proto: true, forced: FORCED }, {
   // eslint-disable-next-line max-statements
   toFixed: function toFixed(fractionDigits) {
diff --git a/packages/core-js/modules/es.number.to-precision.js b/packages/core-js/modules/es.number.to-precision.js
index 710829680fa0..7b1ab8585ec4 100644
--- a/packages/core-js/modules/es.number.to-precision.js
+++ b/packages/core-js/modules/es.number.to-precision.js
@@ -14,7 +14,7 @@ var FORCED = fails(function () {
 });
 
 // `Number.prototype.toPrecision` method
-// https://tc39.github.io/ecma262/#sec-number.prototype.toprecision
+// https://tc39.es/ecma262/#sec-number.prototype.toprecision
 $({ target: 'Number', proto: true, forced: FORCED }, {
   toPrecision: function toPrecision(precision) {
     return precision === undefined
diff --git a/packages/core-js/modules/es.object.assign.js b/packages/core-js/modules/es.object.assign.js
index 5b00e6ae943b..0a9f105bdb03 100644
--- a/packages/core-js/modules/es.object.assign.js
+++ b/packages/core-js/modules/es.object.assign.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var assign = require('../internals/object-assign');
 
 // `Object.assign` method
-// https://tc39.github.io/ecma262/#sec-object.assign
+// https://tc39.es/ecma262/#sec-object.assign
 $({ target: 'Object', stat: true, forced: Object.assign !== assign }, {
   assign: assign
 });
diff --git a/packages/core-js/modules/es.object.create.js b/packages/core-js/modules/es.object.create.js
index 3c278691f93f..2ba36e47bce2 100644
--- a/packages/core-js/modules/es.object.create.js
+++ b/packages/core-js/modules/es.object.create.js
@@ -3,7 +3,7 @@ var DESCRIPTORS = require('../internals/descriptors');
 var create = require('../internals/object-create');
 
 // `Object.create` method
-// https://tc39.github.io/ecma262/#sec-object.create
+// https://tc39.es/ecma262/#sec-object.create
 $({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {
   create: create
 });
diff --git a/packages/core-js/modules/es.object.define-getter.js b/packages/core-js/modules/es.object.define-getter.js
index 0a44e4541347..d31780d69244 100644
--- a/packages/core-js/modules/es.object.define-getter.js
+++ b/packages/core-js/modules/es.object.define-getter.js
@@ -7,7 +7,7 @@ var aFunction = require('../internals/a-function');
 var definePropertyModule = require('../internals/object-define-property');
 
 // `Object.prototype.__defineGetter__` method
-// https://tc39.github.io/ecma262/#sec-object.prototype.__defineGetter__
+// https://tc39.es/ecma262/#sec-object.prototype.__defineGetter__
 if (DESCRIPTORS) {
   $({ target: 'Object', proto: true, forced: FORCED }, {
     __defineGetter__: function __defineGetter__(P, getter) {
diff --git a/packages/core-js/modules/es.object.define-properties.js b/packages/core-js/modules/es.object.define-properties.js
index 9400799feb37..ddc0e72ba3f7 100644
--- a/packages/core-js/modules/es.object.define-properties.js
+++ b/packages/core-js/modules/es.object.define-properties.js
@@ -3,7 +3,7 @@ var DESCRIPTORS = require('../internals/descriptors');
 var defineProperties = require('../internals/object-define-properties');
 
 // `Object.defineProperties` method
-// https://tc39.github.io/ecma262/#sec-object.defineproperties
+// https://tc39.es/ecma262/#sec-object.defineproperties
 $({ target: 'Object', stat: true, forced: !DESCRIPTORS, sham: !DESCRIPTORS }, {
   defineProperties: defineProperties
 });
diff --git a/packages/core-js/modules/es.object.define-property.js b/packages/core-js/modules/es.object.define-property.js
index 19fcf5b37961..64ad4d5c77de 100644
--- a/packages/core-js/modules/es.object.define-property.js
+++ b/packages/core-js/modules/es.object.define-property.js
@@ -3,7 +3,7 @@ var DESCRIPTORS = require('../internals/descriptors');
 var objectDefinePropertyModile = require('../internals/object-define-property');
 
 // `Object.defineProperty` method
-// https://tc39.github.io/ecma262/#sec-object.defineproperty
+// https://tc39.es/ecma262/#sec-object.defineproperty
 $({ target: 'Object', stat: true, forced: !DESCRIPTORS, sham: !DESCRIPTORS }, {
   defineProperty: objectDefinePropertyModile.f
 });
diff --git a/packages/core-js/modules/es.object.define-setter.js b/packages/core-js/modules/es.object.define-setter.js
index 4250177ea980..ddfe5faa005d 100644
--- a/packages/core-js/modules/es.object.define-setter.js
+++ b/packages/core-js/modules/es.object.define-setter.js
@@ -7,7 +7,7 @@ var aFunction = require('../internals/a-function');
 var definePropertyModule = require('../internals/object-define-property');
 
 // `Object.prototype.__defineSetter__` method
-// https://tc39.github.io/ecma262/#sec-object.prototype.__defineSetter__
+// https://tc39.es/ecma262/#sec-object.prototype.__defineSetter__
 if (DESCRIPTORS) {
   $({ target: 'Object', proto: true, forced: FORCED }, {
     __defineSetter__: function __defineSetter__(P, setter) {
diff --git a/packages/core-js/modules/es.object.entries.js b/packages/core-js/modules/es.object.entries.js
index a22e693bb7e9..5829c5a41003 100644
--- a/packages/core-js/modules/es.object.entries.js
+++ b/packages/core-js/modules/es.object.entries.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var $entries = require('../internals/object-to-array').entries;
 
 // `Object.entries` method
-// https://tc39.github.io/ecma262/#sec-object.entries
+// https://tc39.es/ecma262/#sec-object.entries
 $({ target: 'Object', stat: true }, {
   entries: function entries(O) {
     return $entries(O);
diff --git a/packages/core-js/modules/es.object.freeze.js b/packages/core-js/modules/es.object.freeze.js
index 0a623bdc690c..6c5457e4dedd 100644
--- a/packages/core-js/modules/es.object.freeze.js
+++ b/packages/core-js/modules/es.object.freeze.js
@@ -8,7 +8,7 @@ var nativeFreeze = Object.freeze;
 var FAILS_ON_PRIMITIVES = fails(function () { nativeFreeze(1); });
 
 // `Object.freeze` method
-// https://tc39.github.io/ecma262/#sec-object.freeze
+// https://tc39.es/ecma262/#sec-object.freeze
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
   freeze: function freeze(it) {
     return nativeFreeze && isObject(it) ? nativeFreeze(onFreeze(it)) : it;
diff --git a/packages/core-js/modules/es.object.get-own-property-descriptor.js b/packages/core-js/modules/es.object.get-own-property-descriptor.js
index bfeeb888a355..729bca7d4e64 100644
--- a/packages/core-js/modules/es.object.get-own-property-descriptor.js
+++ b/packages/core-js/modules/es.object.get-own-property-descriptor.js
@@ -8,7 +8,7 @@ var FAILS_ON_PRIMITIVES = fails(function () { nativeGetOwnPropertyDescriptor(1);
 var FORCED = !DESCRIPTORS || FAILS_ON_PRIMITIVES;
 
 // `Object.getOwnPropertyDescriptor` method
-// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor
+// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
 $({ target: 'Object', stat: true, forced: FORCED, sham: !DESCRIPTORS }, {
   getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
     return nativeGetOwnPropertyDescriptor(toIndexedObject(it), key);
diff --git a/packages/core-js/modules/es.object.get-own-property-descriptors.js b/packages/core-js/modules/es.object.get-own-property-descriptors.js
index e29c917b0351..0f1cc9fbf07e 100644
--- a/packages/core-js/modules/es.object.get-own-property-descriptors.js
+++ b/packages/core-js/modules/es.object.get-own-property-descriptors.js
@@ -6,7 +6,7 @@ var getOwnPropertyDescriptorModule = require('../internals/object-get-own-proper
 var createProperty = require('../internals/create-property');
 
 // `Object.getOwnPropertyDescriptors` method
-// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors
+// https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
 $({ target: 'Object', stat: true, sham: !DESCRIPTORS }, {
   getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
     var O = toIndexedObject(object);
diff --git a/packages/core-js/modules/es.object.get-own-property-names.js b/packages/core-js/modules/es.object.get-own-property-names.js
index 6a52f4591595..0c154e2194a4 100644
--- a/packages/core-js/modules/es.object.get-own-property-names.js
+++ b/packages/core-js/modules/es.object.get-own-property-names.js
@@ -5,7 +5,7 @@ var nativeGetOwnPropertyNames = require('../internals/object-get-own-property-na
 var FAILS_ON_PRIMITIVES = fails(function () { return !Object.getOwnPropertyNames(1); });
 
 // `Object.getOwnPropertyNames` method
-// https://tc39.github.io/ecma262/#sec-object.getownpropertynames
+// https://tc39.es/ecma262/#sec-object.getownpropertynames
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
   getOwnPropertyNames: nativeGetOwnPropertyNames
 });
diff --git a/packages/core-js/modules/es.object.get-prototype-of.js b/packages/core-js/modules/es.object.get-prototype-of.js
index 7cbb548e6dc6..042ec7b622c9 100644
--- a/packages/core-js/modules/es.object.get-prototype-of.js
+++ b/packages/core-js/modules/es.object.get-prototype-of.js
@@ -7,7 +7,7 @@ var CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');
 var FAILS_ON_PRIMITIVES = fails(function () { nativeGetPrototypeOf(1); });
 
 // `Object.getPrototypeOf` method
-// https://tc39.github.io/ecma262/#sec-object.getprototypeof
+// https://tc39.es/ecma262/#sec-object.getprototypeof
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !CORRECT_PROTOTYPE_GETTER }, {
   getPrototypeOf: function getPrototypeOf(it) {
     return nativeGetPrototypeOf(toObject(it));
diff --git a/packages/core-js/modules/es.object.is-extensible.js b/packages/core-js/modules/es.object.is-extensible.js
index 556405b18b4e..cf0e76c82b6e 100644
--- a/packages/core-js/modules/es.object.is-extensible.js
+++ b/packages/core-js/modules/es.object.is-extensible.js
@@ -6,7 +6,7 @@ var nativeIsExtensible = Object.isExtensible;
 var FAILS_ON_PRIMITIVES = fails(function () { nativeIsExtensible(1); });
 
 // `Object.isExtensible` method
-// https://tc39.github.io/ecma262/#sec-object.isextensible
+// https://tc39.es/ecma262/#sec-object.isextensible
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
   isExtensible: function isExtensible(it) {
     return isObject(it) ? nativeIsExtensible ? nativeIsExtensible(it) : true : false;
diff --git a/packages/core-js/modules/es.object.is-frozen.js b/packages/core-js/modules/es.object.is-frozen.js
index 060314de3ee1..472e5e34e6cb 100644
--- a/packages/core-js/modules/es.object.is-frozen.js
+++ b/packages/core-js/modules/es.object.is-frozen.js
@@ -6,7 +6,7 @@ var nativeIsFrozen = Object.isFrozen;
 var FAILS_ON_PRIMITIVES = fails(function () { nativeIsFrozen(1); });
 
 // `Object.isFrozen` method
-// https://tc39.github.io/ecma262/#sec-object.isfrozen
+// https://tc39.es/ecma262/#sec-object.isfrozen
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
   isFrozen: function isFrozen(it) {
     return isObject(it) ? nativeIsFrozen ? nativeIsFrozen(it) : false : true;
diff --git a/packages/core-js/modules/es.object.is-sealed.js b/packages/core-js/modules/es.object.is-sealed.js
index 0f8b95f410be..c3869e1aeba8 100644
--- a/packages/core-js/modules/es.object.is-sealed.js
+++ b/packages/core-js/modules/es.object.is-sealed.js
@@ -6,7 +6,7 @@ var nativeIsSealed = Object.isSealed;
 var FAILS_ON_PRIMITIVES = fails(function () { nativeIsSealed(1); });
 
 // `Object.isSealed` method
-// https://tc39.github.io/ecma262/#sec-object.issealed
+// https://tc39.es/ecma262/#sec-object.issealed
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
   isSealed: function isSealed(it) {
     return isObject(it) ? nativeIsSealed ? nativeIsSealed(it) : false : true;
diff --git a/packages/core-js/modules/es.object.is.js b/packages/core-js/modules/es.object.is.js
index 9ef6f0af61d9..c9c8f6a2ff46 100644
--- a/packages/core-js/modules/es.object.is.js
+++ b/packages/core-js/modules/es.object.is.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var is = require('../internals/same-value');
 
 // `Object.is` method
-// https://tc39.github.io/ecma262/#sec-object.is
+// https://tc39.es/ecma262/#sec-object.is
 $({ target: 'Object', stat: true }, {
   is: is
 });
diff --git a/packages/core-js/modules/es.object.keys.js b/packages/core-js/modules/es.object.keys.js
index dc2488402d19..b73c12b196f4 100644
--- a/packages/core-js/modules/es.object.keys.js
+++ b/packages/core-js/modules/es.object.keys.js
@@ -6,7 +6,7 @@ var fails = require('../internals/fails');
 var FAILS_ON_PRIMITIVES = fails(function () { nativeKeys(1); });
 
 // `Object.keys` method
-// https://tc39.github.io/ecma262/#sec-object.keys
+// https://tc39.es/ecma262/#sec-object.keys
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
   keys: function keys(it) {
     return nativeKeys(toObject(it));
diff --git a/packages/core-js/modules/es.object.lookup-getter.js b/packages/core-js/modules/es.object.lookup-getter.js
index 46e3fd00f626..ea7deacf4b9d 100644
--- a/packages/core-js/modules/es.object.lookup-getter.js
+++ b/packages/core-js/modules/es.object.lookup-getter.js
@@ -8,7 +8,7 @@ var getPrototypeOf = require('../internals/object-get-prototype-of');
 var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
 
 // `Object.prototype.__lookupGetter__` method
-// https://tc39.github.io/ecma262/#sec-object.prototype.__lookupGetter__
+// https://tc39.es/ecma262/#sec-object.prototype.__lookupGetter__
 if (DESCRIPTORS) {
   $({ target: 'Object', proto: true, forced: FORCED }, {
     __lookupGetter__: function __lookupGetter__(P) {
diff --git a/packages/core-js/modules/es.object.lookup-setter.js b/packages/core-js/modules/es.object.lookup-setter.js
index 57d49fad27d4..984bc8f42a68 100644
--- a/packages/core-js/modules/es.object.lookup-setter.js
+++ b/packages/core-js/modules/es.object.lookup-setter.js
@@ -8,7 +8,7 @@ var getPrototypeOf = require('../internals/object-get-prototype-of');
 var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
 
 // `Object.prototype.__lookupSetter__` method
-// https://tc39.github.io/ecma262/#sec-object.prototype.__lookupSetter__
+// https://tc39.es/ecma262/#sec-object.prototype.__lookupSetter__
 if (DESCRIPTORS) {
   $({ target: 'Object', proto: true, forced: FORCED }, {
     __lookupSetter__: function __lookupSetter__(P) {
diff --git a/packages/core-js/modules/es.object.prevent-extensions.js b/packages/core-js/modules/es.object.prevent-extensions.js
index bb7b2686053e..b1dcda42bc98 100644
--- a/packages/core-js/modules/es.object.prevent-extensions.js
+++ b/packages/core-js/modules/es.object.prevent-extensions.js
@@ -8,7 +8,7 @@ var nativePreventExtensions = Object.preventExtensions;
 var FAILS_ON_PRIMITIVES = fails(function () { nativePreventExtensions(1); });
 
 // `Object.preventExtensions` method
-// https://tc39.github.io/ecma262/#sec-object.preventextensions
+// https://tc39.es/ecma262/#sec-object.preventextensions
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
   preventExtensions: function preventExtensions(it) {
     return nativePreventExtensions && isObject(it) ? nativePreventExtensions(onFreeze(it)) : it;
diff --git a/packages/core-js/modules/es.object.seal.js b/packages/core-js/modules/es.object.seal.js
index 35fae0c5b46e..87449898fbee 100644
--- a/packages/core-js/modules/es.object.seal.js
+++ b/packages/core-js/modules/es.object.seal.js
@@ -8,7 +8,7 @@ var nativeSeal = Object.seal;
 var FAILS_ON_PRIMITIVES = fails(function () { nativeSeal(1); });
 
 // `Object.seal` method
-// https://tc39.github.io/ecma262/#sec-object.seal
+// https://tc39.es/ecma262/#sec-object.seal
 $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
   seal: function seal(it) {
     return nativeSeal && isObject(it) ? nativeSeal(onFreeze(it)) : it;
diff --git a/packages/core-js/modules/es.object.set-prototype-of.js b/packages/core-js/modules/es.object.set-prototype-of.js
index cbe0578d7b03..a491b07f5374 100644
--- a/packages/core-js/modules/es.object.set-prototype-of.js
+++ b/packages/core-js/modules/es.object.set-prototype-of.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var setPrototypeOf = require('../internals/object-set-prototype-of');
 
 // `Object.setPrototypeOf` method
-// https://tc39.github.io/ecma262/#sec-object.setprototypeof
+// https://tc39.es/ecma262/#sec-object.setprototypeof
 $({ target: 'Object', stat: true }, {
   setPrototypeOf: setPrototypeOf
 });
diff --git a/packages/core-js/modules/es.object.to-string.js b/packages/core-js/modules/es.object.to-string.js
index 705de4cb06f8..eaf5b9d6f193 100644
--- a/packages/core-js/modules/es.object.to-string.js
+++ b/packages/core-js/modules/es.object.to-string.js
@@ -3,7 +3,7 @@ var redefine = require('../internals/redefine');
 var toString = require('../internals/object-to-string');
 
 // `Object.prototype.toString` method
-// https://tc39.github.io/ecma262/#sec-object.prototype.tostring
+// https://tc39.es/ecma262/#sec-object.prototype.tostring
 if (!TO_STRING_TAG_SUPPORT) {
   redefine(Object.prototype, 'toString', toString, { unsafe: true });
 }
diff --git a/packages/core-js/modules/es.object.values.js b/packages/core-js/modules/es.object.values.js
index a3074cf77dea..7982f0f76164 100644
--- a/packages/core-js/modules/es.object.values.js
+++ b/packages/core-js/modules/es.object.values.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var $values = require('../internals/object-to-array').values;
 
 // `Object.values` method
-// https://tc39.github.io/ecma262/#sec-object.values
+// https://tc39.es/ecma262/#sec-object.values
 $({ target: 'Object', stat: true }, {
   values: function values(O) {
     return $values(O);
diff --git a/packages/core-js/modules/es.parse-float.js b/packages/core-js/modules/es.parse-float.js
index 1245deb5308c..c56e78011e18 100644
--- a/packages/core-js/modules/es.parse-float.js
+++ b/packages/core-js/modules/es.parse-float.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var parseFloatImplementation = require('../internals/number-parse-float');
 
 // `parseFloat` method
-// https://tc39.github.io/ecma262/#sec-parsefloat-string
+// https://tc39.es/ecma262/#sec-parsefloat-string
 $({ global: true, forced: parseFloat != parseFloatImplementation }, {
   parseFloat: parseFloatImplementation
 });
diff --git a/packages/core-js/modules/es.parse-int.js b/packages/core-js/modules/es.parse-int.js
index b462541afb37..ef7e49a35b3f 100644
--- a/packages/core-js/modules/es.parse-int.js
+++ b/packages/core-js/modules/es.parse-int.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var parseIntImplementation = require('../internals/number-parse-int');
 
 // `parseInt` method
-// https://tc39.github.io/ecma262/#sec-parseint-string-radix
+// https://tc39.es/ecma262/#sec-parseint-string-radix
 $({ global: true, forced: parseInt != parseIntImplementation }, {
   parseInt: parseIntImplementation
 });
diff --git a/packages/core-js/modules/es.promise.all-settled.js b/packages/core-js/modules/es.promise.all-settled.js
index ed10ce6eb2ca..c4a567422063 100644
--- a/packages/core-js/modules/es.promise.all-settled.js
+++ b/packages/core-js/modules/es.promise.all-settled.js
@@ -6,7 +6,7 @@ var perform = require('../internals/perform');
 var iterate = require('../internals/iterate');
 
 // `Promise.allSettled` method
-// https://github.com/tc39/proposal-promise-allSettled
+// https://tc39.es/ecma262/#sec-promise.allsettled
 $({ target: 'Promise', stat: true }, {
   allSettled: function allSettled(iterable) {
     var C = this;
diff --git a/packages/core-js/modules/es.promise.any.js b/packages/core-js/modules/es.promise.any.js
index 08368b43e051..337138b71602 100644
--- a/packages/core-js/modules/es.promise.any.js
+++ b/packages/core-js/modules/es.promise.any.js
@@ -9,7 +9,7 @@ var iterate = require('../internals/iterate');
 var PROMISE_ANY_ERROR = 'No one promise resolved';
 
 // `Promise.any` method
-// https://github.com/tc39/proposal-promise-any
+// https://tc39.es/ecma262/#sec-promise.any
 $({ target: 'Promise', stat: true }, {
   any: function any(iterable) {
     var C = this;
diff --git a/packages/core-js/modules/es.promise.finally.js b/packages/core-js/modules/es.promise.finally.js
index 7efe3e53fb26..fb5fea7fccb1 100644
--- a/packages/core-js/modules/es.promise.finally.js
+++ b/packages/core-js/modules/es.promise.finally.js
@@ -14,7 +14,7 @@ var NON_GENERIC = !!NativePromise && fails(function () {
 });
 
 // `Promise.prototype.finally` method
-// https://tc39.github.io/ecma262/#sec-promise.prototype.finally
+// https://tc39.es/ecma262/#sec-promise.prototype.finally
 $({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {
   'finally': function (onFinally) {
     var C = speciesConstructor(this, getBuiltIn('Promise'));
diff --git a/packages/core-js/modules/es.promise.js b/packages/core-js/modules/es.promise.js
index 10a48e66abf5..dd09a65cdc15 100644
--- a/packages/core-js/modules/es.promise.js
+++ b/packages/core-js/modules/es.promise.js
@@ -252,7 +252,7 @@ if (FORCED) {
   };
   Internal.prototype = redefineAll(PromiseConstructor.prototype, {
     // `Promise.prototype.then` method
-    // https://tc39.github.io/ecma262/#sec-promise.prototype.then
+    // https://tc39.es/ecma262/#sec-promise.prototype.then
     then: function then(onFulfilled, onRejected) {
       var state = getInternalPromiseState(this);
       var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));
@@ -265,7 +265,7 @@ if (FORCED) {
       return reaction.promise;
     },
     // `Promise.prototype.catch` method
-    // https://tc39.github.io/ecma262/#sec-promise.prototype.catch
+    // https://tc39.es/ecma262/#sec-promise.prototype.catch
     'catch': function (onRejected) {
       return this.then(undefined, onRejected);
     }
@@ -317,7 +317,7 @@ PromiseWrapper = getBuiltIn(PROMISE);
 // statics
 $({ target: PROMISE, stat: true, forced: FORCED }, {
   // `Promise.reject` method
-  // https://tc39.github.io/ecma262/#sec-promise.reject
+  // https://tc39.es/ecma262/#sec-promise.reject
   reject: function reject(r) {
     var capability = newPromiseCapability(this);
     capability.reject.call(undefined, r);
@@ -327,7 +327,7 @@ $({ target: PROMISE, stat: true, forced: FORCED }, {
 
 $({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {
   // `Promise.resolve` method
-  // https://tc39.github.io/ecma262/#sec-promise.resolve
+  // https://tc39.es/ecma262/#sec-promise.resolve
   resolve: function resolve(x) {
     return promiseResolve(IS_PURE && this === PromiseWrapper ? PromiseConstructor : this, x);
   }
@@ -335,7 +335,7 @@ $({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {
 
 $({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {
   // `Promise.all` method
-  // https://tc39.github.io/ecma262/#sec-promise.all
+  // https://tc39.es/ecma262/#sec-promise.all
   all: function all(iterable) {
     var C = this;
     var capability = newPromiseCapability(C);
@@ -364,7 +364,7 @@ $({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {
     return capability.promise;
   },
   // `Promise.race` method
-  // https://tc39.github.io/ecma262/#sec-promise.race
+  // https://tc39.es/ecma262/#sec-promise.race
   race: function race(iterable) {
     var C = this;
     var capability = newPromiseCapability(C);
diff --git a/packages/core-js/modules/es.reflect.apply.js b/packages/core-js/modules/es.reflect.apply.js
index 634222bb7646..a3241678fb59 100644
--- a/packages/core-js/modules/es.reflect.apply.js
+++ b/packages/core-js/modules/es.reflect.apply.js
@@ -13,7 +13,7 @@ var OPTIONAL_ARGUMENTS_LIST = !fails(function () {
 });
 
 // `Reflect.apply` method
-// https://tc39.github.io/ecma262/#sec-reflect.apply
+// https://tc39.es/ecma262/#sec-reflect.apply
 $({ target: 'Reflect', stat: true, forced: OPTIONAL_ARGUMENTS_LIST }, {
   apply: function apply(target, thisArgument, argumentsList) {
     aFunction(target);
diff --git a/packages/core-js/modules/es.reflect.construct.js b/packages/core-js/modules/es.reflect.construct.js
index 9e678ddb0828..b9e3670ecd1a 100644
--- a/packages/core-js/modules/es.reflect.construct.js
+++ b/packages/core-js/modules/es.reflect.construct.js
@@ -10,7 +10,7 @@ var fails = require('../internals/fails');
 var nativeConstruct = getBuiltIn('Reflect', 'construct');
 
 // `Reflect.construct` method
-// https://tc39.github.io/ecma262/#sec-reflect.construct
+// https://tc39.es/ecma262/#sec-reflect.construct
 // MS Edge supports only 2 arguments and argumentsList argument is optional
 // FF Nightly sets third argument as `new.target`, but does not create `this` from it
 var NEW_TARGET_BUG = fails(function () {
diff --git a/packages/core-js/modules/es.reflect.define-property.js b/packages/core-js/modules/es.reflect.define-property.js
index 44343f799d84..106e8df47ee4 100644
--- a/packages/core-js/modules/es.reflect.define-property.js
+++ b/packages/core-js/modules/es.reflect.define-property.js
@@ -12,7 +12,7 @@ var ERROR_INSTEAD_OF_FALSE = fails(function () {
 });
 
 // `Reflect.defineProperty` method
-// https://tc39.github.io/ecma262/#sec-reflect.defineproperty
+// https://tc39.es/ecma262/#sec-reflect.defineproperty
 $({ target: 'Reflect', stat: true, forced: ERROR_INSTEAD_OF_FALSE, sham: !DESCRIPTORS }, {
   defineProperty: function defineProperty(target, propertyKey, attributes) {
     anObject(target);
diff --git a/packages/core-js/modules/es.reflect.delete-property.js b/packages/core-js/modules/es.reflect.delete-property.js
index 8cfb32d138d7..709fe3da0428 100644
--- a/packages/core-js/modules/es.reflect.delete-property.js
+++ b/packages/core-js/modules/es.reflect.delete-property.js
@@ -3,7 +3,7 @@ var anObject = require('../internals/an-object');
 var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
 
 // `Reflect.deleteProperty` method
-// https://tc39.github.io/ecma262/#sec-reflect.deleteproperty
+// https://tc39.es/ecma262/#sec-reflect.deleteproperty
 $({ target: 'Reflect', stat: true }, {
   deleteProperty: function deleteProperty(target, propertyKey) {
     var descriptor = getOwnPropertyDescriptor(anObject(target), propertyKey);
diff --git a/packages/core-js/modules/es.reflect.get-own-property-descriptor.js b/packages/core-js/modules/es.reflect.get-own-property-descriptor.js
index 335aac4221b7..70900f6a2ace 100644
--- a/packages/core-js/modules/es.reflect.get-own-property-descriptor.js
+++ b/packages/core-js/modules/es.reflect.get-own-property-descriptor.js
@@ -4,7 +4,7 @@ var anObject = require('../internals/an-object');
 var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
 
 // `Reflect.getOwnPropertyDescriptor` method
-// https://tc39.github.io/ecma262/#sec-reflect.getownpropertydescriptor
+// https://tc39.es/ecma262/#sec-reflect.getownpropertydescriptor
 $({ target: 'Reflect', stat: true, sham: !DESCRIPTORS }, {
   getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey) {
     return getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);
diff --git a/packages/core-js/modules/es.reflect.get-prototype-of.js b/packages/core-js/modules/es.reflect.get-prototype-of.js
index 97859492bcea..01396a147976 100644
--- a/packages/core-js/modules/es.reflect.get-prototype-of.js
+++ b/packages/core-js/modules/es.reflect.get-prototype-of.js
@@ -4,7 +4,7 @@ var objectGetPrototypeOf = require('../internals/object-get-prototype-of');
 var CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');
 
 // `Reflect.getPrototypeOf` method
-// https://tc39.github.io/ecma262/#sec-reflect.getprototypeof
+// https://tc39.es/ecma262/#sec-reflect.getprototypeof
 $({ target: 'Reflect', stat: true, sham: !CORRECT_PROTOTYPE_GETTER }, {
   getPrototypeOf: function getPrototypeOf(target) {
     return objectGetPrototypeOf(anObject(target));
diff --git a/packages/core-js/modules/es.reflect.get.js b/packages/core-js/modules/es.reflect.get.js
index 10e79628fc57..cb6221e45a5c 100644
--- a/packages/core-js/modules/es.reflect.get.js
+++ b/packages/core-js/modules/es.reflect.get.js
@@ -6,7 +6,7 @@ var getOwnPropertyDescriptorModule = require('../internals/object-get-own-proper
 var getPrototypeOf = require('../internals/object-get-prototype-of');
 
 // `Reflect.get` method
-// https://tc39.github.io/ecma262/#sec-reflect.get
+// https://tc39.es/ecma262/#sec-reflect.get
 function get(target, propertyKey /* , receiver */) {
   var receiver = arguments.length < 3 ? target : arguments[2];
   var descriptor, prototype;
diff --git a/packages/core-js/modules/es.reflect.has.js b/packages/core-js/modules/es.reflect.has.js
index c6a8ced4da1f..ff20b735a4d7 100644
--- a/packages/core-js/modules/es.reflect.has.js
+++ b/packages/core-js/modules/es.reflect.has.js
@@ -1,7 +1,7 @@
 var $ = require('../internals/export');
 
 // `Reflect.has` method
-// https://tc39.github.io/ecma262/#sec-reflect.has
+// https://tc39.es/ecma262/#sec-reflect.has
 $({ target: 'Reflect', stat: true }, {
   has: function has(target, propertyKey) {
     return propertyKey in target;
diff --git a/packages/core-js/modules/es.reflect.is-extensible.js b/packages/core-js/modules/es.reflect.is-extensible.js
index 876eae36425a..4fc5125b842c 100644
--- a/packages/core-js/modules/es.reflect.is-extensible.js
+++ b/packages/core-js/modules/es.reflect.is-extensible.js
@@ -4,7 +4,7 @@ var anObject = require('../internals/an-object');
 var objectIsExtensible = Object.isExtensible;
 
 // `Reflect.isExtensible` method
-// https://tc39.github.io/ecma262/#sec-reflect.isextensible
+// https://tc39.es/ecma262/#sec-reflect.isextensible
 $({ target: 'Reflect', stat: true }, {
   isExtensible: function isExtensible(target) {
     anObject(target);
diff --git a/packages/core-js/modules/es.reflect.own-keys.js b/packages/core-js/modules/es.reflect.own-keys.js
index 7a8f3f0e7db3..8432c3552d46 100644
--- a/packages/core-js/modules/es.reflect.own-keys.js
+++ b/packages/core-js/modules/es.reflect.own-keys.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var ownKeys = require('../internals/own-keys');
 
 // `Reflect.ownKeys` method
-// https://tc39.github.io/ecma262/#sec-reflect.ownkeys
+// https://tc39.es/ecma262/#sec-reflect.ownkeys
 $({ target: 'Reflect', stat: true }, {
   ownKeys: ownKeys
 });
diff --git a/packages/core-js/modules/es.reflect.prevent-extensions.js b/packages/core-js/modules/es.reflect.prevent-extensions.js
index 92d04753cfd1..89d3586928e3 100644
--- a/packages/core-js/modules/es.reflect.prevent-extensions.js
+++ b/packages/core-js/modules/es.reflect.prevent-extensions.js
@@ -4,7 +4,7 @@ var anObject = require('../internals/an-object');
 var FREEZING = require('../internals/freezing');
 
 // `Reflect.preventExtensions` method
-// https://tc39.github.io/ecma262/#sec-reflect.preventextensions
+// https://tc39.es/ecma262/#sec-reflect.preventextensions
 $({ target: 'Reflect', stat: true, sham: !FREEZING }, {
   preventExtensions: function preventExtensions(target) {
     anObject(target);
diff --git a/packages/core-js/modules/es.reflect.set-prototype-of.js b/packages/core-js/modules/es.reflect.set-prototype-of.js
index 7900440cf078..c35336b71add 100644
--- a/packages/core-js/modules/es.reflect.set-prototype-of.js
+++ b/packages/core-js/modules/es.reflect.set-prototype-of.js
@@ -4,7 +4,7 @@ var aPossiblePrototype = require('../internals/a-possible-prototype');
 var objectSetPrototypeOf = require('../internals/object-set-prototype-of');
 
 // `Reflect.setPrototypeOf` method
-// https://tc39.github.io/ecma262/#sec-reflect.setprototypeof
+// https://tc39.es/ecma262/#sec-reflect.setprototypeof
 if (objectSetPrototypeOf) $({ target: 'Reflect', stat: true }, {
   setPrototypeOf: function setPrototypeOf(target, proto) {
     anObject(target);
diff --git a/packages/core-js/modules/es.reflect.set.js b/packages/core-js/modules/es.reflect.set.js
index 9949bb3afcaa..ab3345efa53f 100644
--- a/packages/core-js/modules/es.reflect.set.js
+++ b/packages/core-js/modules/es.reflect.set.js
@@ -9,7 +9,7 @@ var getPrototypeOf = require('../internals/object-get-prototype-of');
 var createPropertyDescriptor = require('../internals/create-property-descriptor');
 
 // `Reflect.set` method
-// https://tc39.github.io/ecma262/#sec-reflect.set
+// https://tc39.es/ecma262/#sec-reflect.set
 function set(target, propertyKey, V /* , receiver */) {
   var receiver = arguments.length < 4 ? target : arguments[3];
   var ownDescriptor = getOwnPropertyDescriptorModule.f(anObject(target), propertyKey);
diff --git a/packages/core-js/modules/es.regexp.constructor.js b/packages/core-js/modules/es.regexp.constructor.js
index 25a3bd0ddb95..ec40de9162aa 100644
--- a/packages/core-js/modules/es.regexp.constructor.js
+++ b/packages/core-js/modules/es.regexp.constructor.js
@@ -31,7 +31,7 @@ var FORCED = DESCRIPTORS && isForced('RegExp', (!CORRECT_NEW || UNSUPPORTED_Y ||
 })));
 
 // `RegExp` constructor
-// https://tc39.github.io/ecma262/#sec-regexp-constructor
+// https://tc39.es/ecma262/#sec-regexp-constructor
 if (FORCED) {
   var RegExpWrapper = function RegExp(pattern, flags) {
     var thisIsRegExp = this instanceof RegExpWrapper;
@@ -80,5 +80,5 @@ if (FORCED) {
   redefine(global, 'RegExp', RegExpWrapper);
 }
 
-// https://tc39.github.io/ecma262/#sec-get-regexp-@@species
+// https://tc39.es/ecma262/#sec-get-regexp-@@species
 setSpecies('RegExp');
diff --git a/packages/core-js/modules/es.regexp.exec.js b/packages/core-js/modules/es.regexp.exec.js
index d47a89d69f74..072f2be382a6 100644
--- a/packages/core-js/modules/es.regexp.exec.js
+++ b/packages/core-js/modules/es.regexp.exec.js
@@ -2,6 +2,8 @@
 var $ = require('../internals/export');
 var exec = require('../internals/regexp-exec');
 
+// `RegExp.prototype.exec` method
+// https://tc39.es/ecma262/#sec-regexp.prototype.exec
 $({ target: 'RegExp', proto: true, forced: /./.exec !== exec }, {
   exec: exec
 });
diff --git a/packages/core-js/modules/es.regexp.flags.js b/packages/core-js/modules/es.regexp.flags.js
index 2ad5f267e642..f90605cf8a68 100644
--- a/packages/core-js/modules/es.regexp.flags.js
+++ b/packages/core-js/modules/es.regexp.flags.js
@@ -4,7 +4,7 @@ var regExpFlags = require('../internals/regexp-flags');
 var UNSUPPORTED_Y = require('../internals/regexp-sticky-helpers').UNSUPPORTED_Y;
 
 // `RegExp.prototype.flags` getter
-// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags
+// https://tc39.es/ecma262/#sec-get-regexp.prototype.flags
 if (DESCRIPTORS && (/./g.flags != 'g' || UNSUPPORTED_Y)) {
   objectDefinePropertyModule.f(RegExp.prototype, 'flags', {
     configurable: true,
diff --git a/packages/core-js/modules/es.regexp.sticky.js b/packages/core-js/modules/es.regexp.sticky.js
index 02da204fef27..9ce2717eb03c 100644
--- a/packages/core-js/modules/es.regexp.sticky.js
+++ b/packages/core-js/modules/es.regexp.sticky.js
@@ -5,6 +5,7 @@ var getInternalState = require('../internals/internal-state').get;
 var RegExpPrototype = RegExp.prototype;
 
 // `RegExp.prototype.sticky` getter
+// https://tc39.es/ecma262/#sec-get-regexp.prototype.sticky
 if (DESCRIPTORS && UNSUPPORTED_Y) {
   defineProperty(RegExp.prototype, 'sticky', {
     configurable: true,
diff --git a/packages/core-js/modules/es.regexp.test.js b/packages/core-js/modules/es.regexp.test.js
index b2a0df4c68c9..15e237598692 100644
--- a/packages/core-js/modules/es.regexp.test.js
+++ b/packages/core-js/modules/es.regexp.test.js
@@ -16,6 +16,8 @@ var DELEGATES_TO_EXEC = function () {
 
 var nativeTest = /./.test;
 
+// `RegExp.prototype.test` method
+// https://tc39.es/ecma262/#sec-regexp.prototype.test
 $({ target: 'RegExp', proto: true, forced: !DELEGATES_TO_EXEC }, {
   test: function (str) {
     if (typeof this.exec !== 'function') {
diff --git a/packages/core-js/modules/es.regexp.to-string.js b/packages/core-js/modules/es.regexp.to-string.js
index b75a79a9599d..28352352cbf5 100644
--- a/packages/core-js/modules/es.regexp.to-string.js
+++ b/packages/core-js/modules/es.regexp.to-string.js
@@ -13,7 +13,7 @@ var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a',
 var INCORRECT_NAME = nativeToString.name != TO_STRING;
 
 // `RegExp.prototype.toString` method
-// https://tc39.github.io/ecma262/#sec-regexp.prototype.tostring
+// https://tc39.es/ecma262/#sec-regexp.prototype.tostring
 if (NOT_GENERIC || INCORRECT_NAME) {
   redefine(RegExp.prototype, TO_STRING, function toString() {
     var R = anObject(this);
diff --git a/packages/core-js/modules/es.set.js b/packages/core-js/modules/es.set.js
index ac9004139ffa..234d18656e61 100644
--- a/packages/core-js/modules/es.set.js
+++ b/packages/core-js/modules/es.set.js
@@ -3,7 +3,7 @@ var collection = require('../internals/collection');
 var collectionStrong = require('../internals/collection-strong');
 
 // `Set` constructor
-// https://tc39.github.io/ecma262/#sec-set-objects
+// https://tc39.es/ecma262/#sec-set-objects
 module.exports = collection('Set', function (init) {
   return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };
 }, collectionStrong);
diff --git a/packages/core-js/modules/es.string.anchor.js b/packages/core-js/modules/es.string.anchor.js
index 004cc0a50c25..9c0f0dae6e06 100644
--- a/packages/core-js/modules/es.string.anchor.js
+++ b/packages/core-js/modules/es.string.anchor.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.anchor` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.anchor
+// https://tc39.es/ecma262/#sec-string.prototype.anchor
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('anchor') }, {
   anchor: function anchor(name) {
     return createHTML(this, 'a', 'name', name);
diff --git a/packages/core-js/modules/es.string.big.js b/packages/core-js/modules/es.string.big.js
index 3273d00c8295..478a31c43fbc 100644
--- a/packages/core-js/modules/es.string.big.js
+++ b/packages/core-js/modules/es.string.big.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.big` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.big
+// https://tc39.es/ecma262/#sec-string.prototype.big
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('big') }, {
   big: function big() {
     return createHTML(this, 'big', '', '');
diff --git a/packages/core-js/modules/es.string.blink.js b/packages/core-js/modules/es.string.blink.js
index 9373820d52c5..2599a0fe95ed 100644
--- a/packages/core-js/modules/es.string.blink.js
+++ b/packages/core-js/modules/es.string.blink.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.blink` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.blink
+// https://tc39.es/ecma262/#sec-string.prototype.blink
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('blink') }, {
   blink: function blink() {
     return createHTML(this, 'blink', '', '');
diff --git a/packages/core-js/modules/es.string.bold.js b/packages/core-js/modules/es.string.bold.js
index ea8c48c97c67..ed15e7280854 100644
--- a/packages/core-js/modules/es.string.bold.js
+++ b/packages/core-js/modules/es.string.bold.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.bold` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.bold
+// https://tc39.es/ecma262/#sec-string.prototype.bold
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('bold') }, {
   bold: function bold() {
     return createHTML(this, 'b', '', '');
diff --git a/packages/core-js/modules/es.string.code-point-at.js b/packages/core-js/modules/es.string.code-point-at.js
index 26a2da2ef0b6..927e41386598 100644
--- a/packages/core-js/modules/es.string.code-point-at.js
+++ b/packages/core-js/modules/es.string.code-point-at.js
@@ -3,7 +3,7 @@ var $ = require('../internals/export');
 var codeAt = require('../internals/string-multibyte').codeAt;
 
 // `String.prototype.codePointAt` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.codepointat
+// https://tc39.es/ecma262/#sec-string.prototype.codepointat
 $({ target: 'String', proto: true }, {
   codePointAt: function codePointAt(pos) {
     return codeAt(this, pos);
diff --git a/packages/core-js/modules/es.string.ends-with.js b/packages/core-js/modules/es.string.ends-with.js
index e19b0f6356d3..74d6a278e014 100644
--- a/packages/core-js/modules/es.string.ends-with.js
+++ b/packages/core-js/modules/es.string.ends-with.js
@@ -18,7 +18,7 @@ var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {
 }();
 
 // `String.prototype.endsWith` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.endswith
+// https://tc39.es/ecma262/#sec-string.prototype.endswith
 $({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
   endsWith: function endsWith(searchString /* , endPosition = @length */) {
     var that = String(requireObjectCoercible(this));
diff --git a/packages/core-js/modules/es.string.fixed.js b/packages/core-js/modules/es.string.fixed.js
index 13f8a0433a59..9f9b87d54d23 100644
--- a/packages/core-js/modules/es.string.fixed.js
+++ b/packages/core-js/modules/es.string.fixed.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.fixed` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.fixed
+// https://tc39.es/ecma262/#sec-string.prototype.fixed
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fixed') }, {
   fixed: function fixed() {
     return createHTML(this, 'tt', '', '');
diff --git a/packages/core-js/modules/es.string.fontcolor.js b/packages/core-js/modules/es.string.fontcolor.js
index 88636c2008d7..f96ebb4eb55a 100644
--- a/packages/core-js/modules/es.string.fontcolor.js
+++ b/packages/core-js/modules/es.string.fontcolor.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.fontcolor` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.fontcolor
+// https://tc39.es/ecma262/#sec-string.prototype.fontcolor
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fontcolor') }, {
   fontcolor: function fontcolor(color) {
     return createHTML(this, 'font', 'color', color);
diff --git a/packages/core-js/modules/es.string.fontsize.js b/packages/core-js/modules/es.string.fontsize.js
index 09c071506c1e..e5760460a413 100644
--- a/packages/core-js/modules/es.string.fontsize.js
+++ b/packages/core-js/modules/es.string.fontsize.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.fontsize` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.fontsize
+// https://tc39.es/ecma262/#sec-string.prototype.fontsize
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('fontsize') }, {
   fontsize: function fontsize(size) {
     return createHTML(this, 'font', 'size', size);
diff --git a/packages/core-js/modules/es.string.from-code-point.js b/packages/core-js/modules/es.string.from-code-point.js
index 139ed89190b9..f41c0eb28623 100644
--- a/packages/core-js/modules/es.string.from-code-point.js
+++ b/packages/core-js/modules/es.string.from-code-point.js
@@ -8,7 +8,7 @@ var nativeFromCodePoint = String.fromCodePoint;
 var INCORRECT_LENGTH = !!nativeFromCodePoint && nativeFromCodePoint.length != 1;
 
 // `String.fromCodePoint` method
-// https://tc39.github.io/ecma262/#sec-string.fromcodepoint
+// https://tc39.es/ecma262/#sec-string.fromcodepoint
 $({ target: 'String', stat: true, forced: INCORRECT_LENGTH }, {
   fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars
     var elements = [];
diff --git a/packages/core-js/modules/es.string.includes.js b/packages/core-js/modules/es.string.includes.js
index 25dbcd8d4e78..5da20f2efbd4 100644
--- a/packages/core-js/modules/es.string.includes.js
+++ b/packages/core-js/modules/es.string.includes.js
@@ -5,7 +5,7 @@ var requireObjectCoercible = require('../internals/require-object-coercible');
 var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');
 
 // `String.prototype.includes` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.includes
+// https://tc39.es/ecma262/#sec-string.prototype.includes
 $({ target: 'String', proto: true, forced: !correctIsRegExpLogic('includes') }, {
   includes: function includes(searchString /* , position = 0 */) {
     return !!~String(requireObjectCoercible(this))
diff --git a/packages/core-js/modules/es.string.italics.js b/packages/core-js/modules/es.string.italics.js
index 76bf3e49e1d0..fca5e06e1b10 100644
--- a/packages/core-js/modules/es.string.italics.js
+++ b/packages/core-js/modules/es.string.italics.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.italics` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.italics
+// https://tc39.es/ecma262/#sec-string.prototype.italics
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('italics') }, {
   italics: function italics() {
     return createHTML(this, 'i', '', '');
diff --git a/packages/core-js/modules/es.string.iterator.js b/packages/core-js/modules/es.string.iterator.js
index 8a268e0e44d0..4a4c81364be3 100644
--- a/packages/core-js/modules/es.string.iterator.js
+++ b/packages/core-js/modules/es.string.iterator.js
@@ -8,7 +8,7 @@ var setInternalState = InternalStateModule.set;
 var getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);
 
 // `String.prototype[@@iterator]` method
-// https://tc39.github.io/ecma262/#sec-string.prototype-@@iterator
+// https://tc39.es/ecma262/#sec-string.prototype-@@iterator
 defineIterator(String, 'String', function (iterated) {
   setInternalState(this, {
     type: STRING_ITERATOR,
@@ -16,7 +16,7 @@ defineIterator(String, 'String', function (iterated) {
     index: 0
   });
 // `%StringIteratorPrototype%.next` method
-// https://tc39.github.io/ecma262/#sec-%stringiteratorprototype%.next
+// https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
 }, function next() {
   var state = getInternalState(this);
   var string = state.string;
diff --git a/packages/core-js/modules/es.string.link.js b/packages/core-js/modules/es.string.link.js
index 65f823288e30..0d12891587e8 100644
--- a/packages/core-js/modules/es.string.link.js
+++ b/packages/core-js/modules/es.string.link.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.link` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.link
+// https://tc39.es/ecma262/#sec-string.prototype.link
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('link') }, {
   link: function link(url) {
     return createHTML(this, 'a', 'href', url);
diff --git a/packages/core-js/modules/es.string.match-all.js b/packages/core-js/modules/es.string.match-all.js
index 3fc36eb81ac0..a0db0e764931 100644
--- a/packages/core-js/modules/es.string.match-all.js
+++ b/packages/core-js/modules/es.string.match-all.js
@@ -82,7 +82,7 @@ var $matchAll = function (string) {
 };
 
 // `String.prototype.matchAll` method
-// https://github.com/tc39/proposal-string-matchall
+// https://tc39.es/ecma262/#sec-string.prototype.matchall
 $({ target: 'String', proto: true, forced: WORKS_WITH_NON_GLOBAL_REGEX }, {
   matchAll: function matchAll(regexp) {
     var O = requireObjectCoercible(this);
diff --git a/packages/core-js/modules/es.string.match.js b/packages/core-js/modules/es.string.match.js
index b69a2a278fa5..0461fd0ed595 100644
--- a/packages/core-js/modules/es.string.match.js
+++ b/packages/core-js/modules/es.string.match.js
@@ -10,14 +10,14 @@ var regExpExec = require('../internals/regexp-exec-abstract');
 fixRegExpWellKnownSymbolLogic('match', 1, function (MATCH, nativeMatch, maybeCallNative) {
   return [
     // `String.prototype.match` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.match
+    // https://tc39.es/ecma262/#sec-string.prototype.match
     function match(regexp) {
       var O = requireObjectCoercible(this);
       var matcher = regexp == undefined ? undefined : regexp[MATCH];
       return matcher !== undefined ? matcher.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));
     },
     // `RegExp.prototype[@@match]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@match
+    // https://tc39.es/ecma262/#sec-regexp.prototype-@@match
     function (regexp) {
       var res = maybeCallNative(nativeMatch, regexp, this);
       if (res.done) return res.value;
diff --git a/packages/core-js/modules/es.string.pad-end.js b/packages/core-js/modules/es.string.pad-end.js
index 9108024c4905..f770a85fa33f 100644
--- a/packages/core-js/modules/es.string.pad-end.js
+++ b/packages/core-js/modules/es.string.pad-end.js
@@ -4,7 +4,7 @@ var $padEnd = require('../internals/string-pad').end;
 var WEBKIT_BUG = require('../internals/string-pad-webkit-bug');
 
 // `String.prototype.padEnd` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.padend
+// https://tc39.es/ecma262/#sec-string.prototype.padend
 $({ target: 'String', proto: true, forced: WEBKIT_BUG }, {
   padEnd: function padEnd(maxLength /* , fillString = ' ' */) {
     return $padEnd(this, maxLength, arguments.length > 1 ? arguments[1] : undefined);
diff --git a/packages/core-js/modules/es.string.pad-start.js b/packages/core-js/modules/es.string.pad-start.js
index 69b788fa0148..d213b46eae90 100644
--- a/packages/core-js/modules/es.string.pad-start.js
+++ b/packages/core-js/modules/es.string.pad-start.js
@@ -4,7 +4,7 @@ var $padStart = require('../internals/string-pad').start;
 var WEBKIT_BUG = require('../internals/string-pad-webkit-bug');
 
 // `String.prototype.padStart` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.padstart
+// https://tc39.es/ecma262/#sec-string.prototype.padstart
 $({ target: 'String', proto: true, forced: WEBKIT_BUG }, {
   padStart: function padStart(maxLength /* , fillString = ' ' */) {
     return $padStart(this, maxLength, arguments.length > 1 ? arguments[1] : undefined);
diff --git a/packages/core-js/modules/es.string.raw.js b/packages/core-js/modules/es.string.raw.js
index beb0783949fc..4802a2fd162e 100644
--- a/packages/core-js/modules/es.string.raw.js
+++ b/packages/core-js/modules/es.string.raw.js
@@ -3,7 +3,7 @@ var toIndexedObject = require('../internals/to-indexed-object');
 var toLength = require('../internals/to-length');
 
 // `String.raw` method
-// https://tc39.github.io/ecma262/#sec-string.raw
+// https://tc39.es/ecma262/#sec-string.raw
 $({ target: 'String', stat: true }, {
   raw: function raw(template) {
     var rawTemplate = toIndexedObject(template.raw);
diff --git a/packages/core-js/modules/es.string.repeat.js b/packages/core-js/modules/es.string.repeat.js
index 43890aa53cde..57ddf9c98692 100644
--- a/packages/core-js/modules/es.string.repeat.js
+++ b/packages/core-js/modules/es.string.repeat.js
@@ -2,7 +2,7 @@ var $ = require('../internals/export');
 var repeat = require('../internals/string-repeat');
 
 // `String.prototype.repeat` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.repeat
+// https://tc39.es/ecma262/#sec-string.prototype.repeat
 $({ target: 'String', proto: true }, {
   repeat: repeat
 });
diff --git a/packages/core-js/modules/es.string.replace-all.js b/packages/core-js/modules/es.string.replace-all.js
index 9f037e01f9c0..0838b1ec6da7 100644
--- a/packages/core-js/modules/es.string.replace-all.js
+++ b/packages/core-js/modules/es.string.replace-all.js
@@ -18,7 +18,7 @@ var stringIndexOf = function (string, searchValue, fromIndex) {
 };
 
 // `String.prototype.replaceAll` method
-// https://github.com/tc39/proposal-string-replace-all
+// https://tc39.es/ecma262/#sec-string.prototype.replaceall
 $({ target: 'String', proto: true }, {
   replaceAll: function replaceAll(searchValue, replaceValue) {
     var O = requireObjectCoercible(this);
diff --git a/packages/core-js/modules/es.string.replace.js b/packages/core-js/modules/es.string.replace.js
index e9ab6a92b7ba..7f4f2f24bd15 100644
--- a/packages/core-js/modules/es.string.replace.js
+++ b/packages/core-js/modules/es.string.replace.js
@@ -23,7 +23,7 @@ fixRegExpWellKnownSymbolLogic('replace', 2, function (REPLACE, nativeReplace, ma
 
   return [
     // `String.prototype.replace` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.replace
+    // https://tc39.es/ecma262/#sec-string.prototype.replace
     function replace(searchValue, replaceValue) {
       var O = requireObjectCoercible(this);
       var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];
@@ -32,7 +32,7 @@ fixRegExpWellKnownSymbolLogic('replace', 2, function (REPLACE, nativeReplace, ma
         : nativeReplace.call(String(O), searchValue, replaceValue);
     },
     // `RegExp.prototype[@@replace]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@replace
+    // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
     function (regexp, replaceValue) {
       if (
         (!REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE && REPLACE_KEEPS_$0) ||
diff --git a/packages/core-js/modules/es.string.search.js b/packages/core-js/modules/es.string.search.js
index 8322e2213a59..ec6fd4f8d6f7 100644
--- a/packages/core-js/modules/es.string.search.js
+++ b/packages/core-js/modules/es.string.search.js
@@ -9,14 +9,14 @@ var regExpExec = require('../internals/regexp-exec-abstract');
 fixRegExpWellKnownSymbolLogic('search', 1, function (SEARCH, nativeSearch, maybeCallNative) {
   return [
     // `String.prototype.search` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.search
+    // https://tc39.es/ecma262/#sec-string.prototype.search
     function search(regexp) {
       var O = requireObjectCoercible(this);
       var searcher = regexp == undefined ? undefined : regexp[SEARCH];
       return searcher !== undefined ? searcher.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));
     },
     // `RegExp.prototype[@@search]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@search
+    // https://tc39.es/ecma262/#sec-regexp.prototype-@@search
     function (regexp) {
       var res = maybeCallNative(nativeSearch, regexp, this);
       if (res.done) return res.value;
diff --git a/packages/core-js/modules/es.string.small.js b/packages/core-js/modules/es.string.small.js
index c8587d6538bf..ab9f66584ebc 100644
--- a/packages/core-js/modules/es.string.small.js
+++ b/packages/core-js/modules/es.string.small.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.small` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.small
+// https://tc39.es/ecma262/#sec-string.prototype.small
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('small') }, {
   small: function small() {
     return createHTML(this, 'small', '', '');
diff --git a/packages/core-js/modules/es.string.split.js b/packages/core-js/modules/es.string.split.js
index 26743f50b4f3..9b68f3d19d43 100644
--- a/packages/core-js/modules/es.string.split.js
+++ b/packages/core-js/modules/es.string.split.js
@@ -72,7 +72,7 @@ fixRegExpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCal
 
   return [
     // `String.prototype.split` method
-    // https://tc39.github.io/ecma262/#sec-string.prototype.split
+    // https://tc39.es/ecma262/#sec-string.prototype.split
     function split(separator, limit) {
       var O = requireObjectCoercible(this);
       var splitter = separator == undefined ? undefined : separator[SPLIT];
@@ -81,7 +81,7 @@ fixRegExpWellKnownSymbolLogic('split', 2, function (SPLIT, nativeSplit, maybeCal
         : internalSplit.call(String(O), separator, limit);
     },
     // `RegExp.prototype[@@split]` method
-    // https://tc39.github.io/ecma262/#sec-regexp.prototype-@@split
+    // https://tc39.es/ecma262/#sec-regexp.prototype-@@split
     //
     // NOTE: This cannot be properly polyfilled in engines that don't support
     // the 'y' flag.
diff --git a/packages/core-js/modules/es.string.starts-with.js b/packages/core-js/modules/es.string.starts-with.js
index e4fe655c7e91..e037cc88ba61 100644
--- a/packages/core-js/modules/es.string.starts-with.js
+++ b/packages/core-js/modules/es.string.starts-with.js
@@ -18,7 +18,7 @@ var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {
 }();
 
 // `String.prototype.startsWith` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.startswith
+// https://tc39.es/ecma262/#sec-string.prototype.startswith
 $({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
   startsWith: function startsWith(searchString /* , position = 0 */) {
     var that = String(requireObjectCoercible(this));
diff --git a/packages/core-js/modules/es.string.strike.js b/packages/core-js/modules/es.string.strike.js
index 4f0fa2eff18b..f78a222e3994 100644
--- a/packages/core-js/modules/es.string.strike.js
+++ b/packages/core-js/modules/es.string.strike.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.strike` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.strike
+// https://tc39.es/ecma262/#sec-string.prototype.strike
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('strike') }, {
   strike: function strike() {
     return createHTML(this, 'strike', '', '');
diff --git a/packages/core-js/modules/es.string.sub.js b/packages/core-js/modules/es.string.sub.js
index 4b901d2d6e1c..bc62879c09bb 100644
--- a/packages/core-js/modules/es.string.sub.js
+++ b/packages/core-js/modules/es.string.sub.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.sub` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.sub
+// https://tc39.es/ecma262/#sec-string.prototype.sub
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('sub') }, {
   sub: function sub() {
     return createHTML(this, 'sub', '', '');
diff --git a/packages/core-js/modules/es.string.sup.js b/packages/core-js/modules/es.string.sup.js
index 3fc0b181c7ba..6e1e5cbe1a01 100644
--- a/packages/core-js/modules/es.string.sup.js
+++ b/packages/core-js/modules/es.string.sup.js
@@ -4,7 +4,7 @@ var createHTML = require('../internals/create-html');
 var forcedStringHTMLMethod = require('../internals/string-html-forced');
 
 // `String.prototype.sup` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.sup
+// https://tc39.es/ecma262/#sec-string.prototype.sup
 $({ target: 'String', proto: true, forced: forcedStringHTMLMethod('sup') }, {
   sup: function sup() {
     return createHTML(this, 'sup', '', '');
diff --git a/packages/core-js/modules/es.string.trim-end.js b/packages/core-js/modules/es.string.trim-end.js
index 4db829a987f4..3940fedf4c5f 100644
--- a/packages/core-js/modules/es.string.trim-end.js
+++ b/packages/core-js/modules/es.string.trim-end.js
@@ -10,7 +10,8 @@ var trimEnd = FORCED ? function trimEnd() {
 } : ''.trimEnd;
 
 // `String.prototype.{ trimEnd, trimRight }` methods
-// https://github.com/tc39/ecmascript-string-left-right-trim
+// https://tc39.es/ecma262/#sec-string.prototype.trimend
+// https://tc39.es/ecma262/#String.prototype.trimright
 $({ target: 'String', proto: true, forced: FORCED }, {
   trimEnd: trimEnd,
   trimRight: trimEnd
diff --git a/packages/core-js/modules/es.string.trim-start.js b/packages/core-js/modules/es.string.trim-start.js
index b4f6e43d6ecb..997bd888a92b 100644
--- a/packages/core-js/modules/es.string.trim-start.js
+++ b/packages/core-js/modules/es.string.trim-start.js
@@ -10,7 +10,8 @@ var trimStart = FORCED ? function trimStart() {
 } : ''.trimStart;
 
 // `String.prototype.{ trimStart, trimLeft }` methods
-// https://github.com/tc39/ecmascript-string-left-right-trim
+// https://tc39.es/ecma262/#sec-string.prototype.trimstart
+// https://tc39.es/ecma262/#String.prototype.trimleft
 $({ target: 'String', proto: true, forced: FORCED }, {
   trimStart: trimStart,
   trimLeft: trimStart
diff --git a/packages/core-js/modules/es.string.trim.js b/packages/core-js/modules/es.string.trim.js
index 124768f20764..e9cfb4ba469c 100644
--- a/packages/core-js/modules/es.string.trim.js
+++ b/packages/core-js/modules/es.string.trim.js
@@ -4,7 +4,7 @@ var $trim = require('../internals/string-trim').trim;
 var forcedStringTrimMethod = require('../internals/string-trim-forced');
 
 // `String.prototype.trim` method
-// https://tc39.github.io/ecma262/#sec-string.prototype.trim
+// https://tc39.es/ecma262/#sec-string.prototype.trim
 $({ target: 'String', proto: true, forced: forcedStringTrimMethod('trim') }, {
   trim: function trim() {
     return $trim(this);
diff --git a/packages/core-js/modules/es.symbol.async-iterator.js b/packages/core-js/modules/es.symbol.async-iterator.js
index ecf7281deb2f..2ed6bb78ef8b 100644
--- a/packages/core-js/modules/es.symbol.async-iterator.js
+++ b/packages/core-js/modules/es.symbol.async-iterator.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.asyncIterator` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.asynciterator
+// https://tc39.es/ecma262/#sec-symbol.asynciterator
 defineWellKnownSymbol('asyncIterator');
diff --git a/packages/core-js/modules/es.symbol.description.js b/packages/core-js/modules/es.symbol.description.js
index ea67abf6fb96..c18adc819ff7 100644
--- a/packages/core-js/modules/es.symbol.description.js
+++ b/packages/core-js/modules/es.symbol.description.js
@@ -1,5 +1,5 @@
 // `Symbol.prototype.description` getter
-// https://tc39.github.io/ecma262/#sec-symbol.prototype.description
+// https://tc39.es/ecma262/#sec-symbol.prototype.description
 'use strict';
 var $ = require('../internals/export');
 var DESCRIPTORS = require('../internals/descriptors');
diff --git a/packages/core-js/modules/es.symbol.has-instance.js b/packages/core-js/modules/es.symbol.has-instance.js
index 2226ddb2c5e3..9b1dfa689039 100644
--- a/packages/core-js/modules/es.symbol.has-instance.js
+++ b/packages/core-js/modules/es.symbol.has-instance.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.hasInstance` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.hasinstance
+// https://tc39.es/ecma262/#sec-symbol.hasinstance
 defineWellKnownSymbol('hasInstance');
diff --git a/packages/core-js/modules/es.symbol.is-concat-spreadable.js b/packages/core-js/modules/es.symbol.is-concat-spreadable.js
index d53771ba9f7c..14a8c90f0777 100644
--- a/packages/core-js/modules/es.symbol.is-concat-spreadable.js
+++ b/packages/core-js/modules/es.symbol.is-concat-spreadable.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.isConcatSpreadable` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.isconcatspreadable
+// https://tc39.es/ecma262/#sec-symbol.isconcatspreadable
 defineWellKnownSymbol('isConcatSpreadable');
diff --git a/packages/core-js/modules/es.symbol.iterator.js b/packages/core-js/modules/es.symbol.iterator.js
index e43878df84f2..3d941e171dda 100644
--- a/packages/core-js/modules/es.symbol.iterator.js
+++ b/packages/core-js/modules/es.symbol.iterator.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.iterator` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.iterator
+// https://tc39.es/ecma262/#sec-symbol.iterator
 defineWellKnownSymbol('iterator');
diff --git a/packages/core-js/modules/es.symbol.js b/packages/core-js/modules/es.symbol.js
index 07f1ee943a6b..6809b8a38ce6 100644
--- a/packages/core-js/modules/es.symbol.js
+++ b/packages/core-js/modules/es.symbol.js
@@ -159,7 +159,7 @@ var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
 };
 
 // `Symbol` constructor
-// https://tc39.github.io/ecma262/#sec-symbol-constructor
+// https://tc39.es/ecma262/#sec-symbol-constructor
 if (!NATIVE_SYMBOL) {
   $Symbol = function Symbol() {
     if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');
@@ -216,7 +216,7 @@ $forEach(objectKeys(WellKnownSymbolsStore), function (name) {
 
 $({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
   // `Symbol.for` method
-  // https://tc39.github.io/ecma262/#sec-symbol.for
+  // https://tc39.es/ecma262/#sec-symbol.for
   'for': function (key) {
     var string = String(key);
     if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
@@ -226,7 +226,7 @@ $({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
     return symbol;
   },
   // `Symbol.keyFor` method
-  // https://tc39.github.io/ecma262/#sec-symbol.keyfor
+  // https://tc39.es/ecma262/#sec-symbol.keyfor
   keyFor: function keyFor(sym) {
     if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');
     if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
@@ -237,25 +237,25 @@ $({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
 
 $({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {
   // `Object.create` method
-  // https://tc39.github.io/ecma262/#sec-object.create
+  // https://tc39.es/ecma262/#sec-object.create
   create: $create,
   // `Object.defineProperty` method
-  // https://tc39.github.io/ecma262/#sec-object.defineproperty
+  // https://tc39.es/ecma262/#sec-object.defineproperty
   defineProperty: $defineProperty,
   // `Object.defineProperties` method
-  // https://tc39.github.io/ecma262/#sec-object.defineproperties
+  // https://tc39.es/ecma262/#sec-object.defineproperties
   defineProperties: $defineProperties,
   // `Object.getOwnPropertyDescriptor` method
-  // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors
+  // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
   getOwnPropertyDescriptor: $getOwnPropertyDescriptor
 });
 
 $({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {
   // `Object.getOwnPropertyNames` method
-  // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
+  // https://tc39.es/ecma262/#sec-object.getownpropertynames
   getOwnPropertyNames: $getOwnPropertyNames,
   // `Object.getOwnPropertySymbols` method
-  // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols
+  // https://tc39.es/ecma262/#sec-object.getownpropertysymbols
   getOwnPropertySymbols: $getOwnPropertySymbols
 });
 
@@ -268,7 +268,7 @@ $({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymb
 });
 
 // `JSON.stringify` method behavior with symbols
-// https://tc39.github.io/ecma262/#sec-json.stringify
+// https://tc39.es/ecma262/#sec-json.stringify
 if ($stringify) {
   var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {
     var symbol = $Symbol();
@@ -300,12 +300,12 @@ if ($stringify) {
 }
 
 // `Symbol.prototype[@@toPrimitive]` method
-// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive
+// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
 if (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {
   createNonEnumerableProperty($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
 }
 // `Symbol.prototype[@@toStringTag]` property
-// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag
+// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
 setToStringTag($Symbol, SYMBOL);
 
 hiddenKeys[HIDDEN] = true;
diff --git a/packages/core-js/modules/es.symbol.match-all.js b/packages/core-js/modules/es.symbol.match-all.js
index b16c8beaa03c..9107175127c5 100644
--- a/packages/core-js/modules/es.symbol.match-all.js
+++ b/packages/core-js/modules/es.symbol.match-all.js
@@ -1,4 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.matchAll` well-known symbol
+// https://tc39.es/ecma262/#sec-symbol.matchall
 defineWellKnownSymbol('matchAll');
diff --git a/packages/core-js/modules/es.symbol.match.js b/packages/core-js/modules/es.symbol.match.js
index ec2fbdbedf55..f82da17e388d 100644
--- a/packages/core-js/modules/es.symbol.match.js
+++ b/packages/core-js/modules/es.symbol.match.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.match` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.match
+// https://tc39.es/ecma262/#sec-symbol.match
 defineWellKnownSymbol('match');
diff --git a/packages/core-js/modules/es.symbol.replace.js b/packages/core-js/modules/es.symbol.replace.js
index d252d8d4b55e..c21e4a2732b4 100644
--- a/packages/core-js/modules/es.symbol.replace.js
+++ b/packages/core-js/modules/es.symbol.replace.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.replace` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.replace
+// https://tc39.es/ecma262/#sec-symbol.replace
 defineWellKnownSymbol('replace');
diff --git a/packages/core-js/modules/es.symbol.search.js b/packages/core-js/modules/es.symbol.search.js
index 0c28e62c3e6b..066b558f4325 100644
--- a/packages/core-js/modules/es.symbol.search.js
+++ b/packages/core-js/modules/es.symbol.search.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.search` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.search
+// https://tc39.es/ecma262/#sec-symbol.search
 defineWellKnownSymbol('search');
diff --git a/packages/core-js/modules/es.symbol.species.js b/packages/core-js/modules/es.symbol.species.js
index 8391f22d781a..9062b4056432 100644
--- a/packages/core-js/modules/es.symbol.species.js
+++ b/packages/core-js/modules/es.symbol.species.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.species` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.species
+// https://tc39.es/ecma262/#sec-symbol.species
 defineWellKnownSymbol('species');
diff --git a/packages/core-js/modules/es.symbol.split.js b/packages/core-js/modules/es.symbol.split.js
index 5f76df44ff32..8ca22fa5f8f4 100644
--- a/packages/core-js/modules/es.symbol.split.js
+++ b/packages/core-js/modules/es.symbol.split.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.split` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.split
+// https://tc39.es/ecma262/#sec-symbol.split
 defineWellKnownSymbol('split');
diff --git a/packages/core-js/modules/es.symbol.to-primitive.js b/packages/core-js/modules/es.symbol.to-primitive.js
index c2978265c9cd..9e940c589c14 100644
--- a/packages/core-js/modules/es.symbol.to-primitive.js
+++ b/packages/core-js/modules/es.symbol.to-primitive.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.toPrimitive` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.toprimitive
+// https://tc39.es/ecma262/#sec-symbol.toprimitive
 defineWellKnownSymbol('toPrimitive');
diff --git a/packages/core-js/modules/es.symbol.to-string-tag.js b/packages/core-js/modules/es.symbol.to-string-tag.js
index 8ddbfad12c5e..8dbe9a8422db 100644
--- a/packages/core-js/modules/es.symbol.to-string-tag.js
+++ b/packages/core-js/modules/es.symbol.to-string-tag.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.toStringTag` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.tostringtag
+// https://tc39.es/ecma262/#sec-symbol.tostringtag
 defineWellKnownSymbol('toStringTag');
diff --git a/packages/core-js/modules/es.symbol.unscopables.js b/packages/core-js/modules/es.symbol.unscopables.js
index a9daa6065040..d56d8e065a65 100644
--- a/packages/core-js/modules/es.symbol.unscopables.js
+++ b/packages/core-js/modules/es.symbol.unscopables.js
@@ -1,5 +1,5 @@
 var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
 
 // `Symbol.unscopables` well-known symbol
-// https://tc39.github.io/ecma262/#sec-symbol.unscopables
+// https://tc39.es/ecma262/#sec-symbol.unscopables
 defineWellKnownSymbol('unscopables');
diff --git a/packages/core-js/modules/es.typed-array.copy-within.js b/packages/core-js/modules/es.typed-array.copy-within.js
index 424a84175ce6..147edf228150 100644
--- a/packages/core-js/modules/es.typed-array.copy-within.js
+++ b/packages/core-js/modules/es.typed-array.copy-within.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.copyWithin` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.copywithin
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.copywithin
 exportTypedArrayMethod('copyWithin', function copyWithin(target, start /* , end */) {
   return $copyWithin.call(aTypedArray(this), target, start, arguments.length > 2 ? arguments[2] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.every.js b/packages/core-js/modules/es.typed-array.every.js
index 496aa6006627..625a0c5995d7 100644
--- a/packages/core-js/modules/es.typed-array.every.js
+++ b/packages/core-js/modules/es.typed-array.every.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.every` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.every
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.every
 exportTypedArrayMethod('every', function every(callbackfn /* , thisArg */) {
   return $every(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.fill.js b/packages/core-js/modules/es.typed-array.fill.js
index e7dbadfa613a..df62eb5bb5cc 100644
--- a/packages/core-js/modules/es.typed-array.fill.js
+++ b/packages/core-js/modules/es.typed-array.fill.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.fill` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.fill
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.fill
 // eslint-disable-next-line no-unused-vars
 exportTypedArrayMethod('fill', function fill(value /* , start, end */) {
   return $fill.apply(aTypedArray(this), arguments);
diff --git a/packages/core-js/modules/es.typed-array.filter.js b/packages/core-js/modules/es.typed-array.filter.js
index 952575aac34b..7787c5e594b3 100644
--- a/packages/core-js/modules/es.typed-array.filter.js
+++ b/packages/core-js/modules/es.typed-array.filter.js
@@ -8,7 +8,7 @@ var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.filter` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.filter
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.filter
 exportTypedArrayMethod('filter', function filter(callbackfn /* , thisArg */) {
   var list = $filter(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
   var C = speciesConstructor(this, this.constructor);
diff --git a/packages/core-js/modules/es.typed-array.find-index.js b/packages/core-js/modules/es.typed-array.find-index.js
index ba74e17d3bec..b1266565fbc7 100644
--- a/packages/core-js/modules/es.typed-array.find-index.js
+++ b/packages/core-js/modules/es.typed-array.find-index.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.findIndex` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.findindex
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.findindex
 exportTypedArrayMethod('findIndex', function findIndex(predicate /* , thisArg */) {
   return $findIndex(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.find.js b/packages/core-js/modules/es.typed-array.find.js
index 32b21d4edabe..db7ee3f78b28 100644
--- a/packages/core-js/modules/es.typed-array.find.js
+++ b/packages/core-js/modules/es.typed-array.find.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.find` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.find
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.find
 exportTypedArrayMethod('find', function find(predicate /* , thisArg */) {
   return $find(aTypedArray(this), predicate, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.float32-array.js b/packages/core-js/modules/es.typed-array.float32-array.js
index 8bc9ffe36dfc..e1a234d4b667 100644
--- a/packages/core-js/modules/es.typed-array.float32-array.js
+++ b/packages/core-js/modules/es.typed-array.float32-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Float32Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Float32', function (init) {
   return function Float32Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.float64-array.js b/packages/core-js/modules/es.typed-array.float64-array.js
index 3c08be96e5bc..1b128bbce9c2 100644
--- a/packages/core-js/modules/es.typed-array.float64-array.js
+++ b/packages/core-js/modules/es.typed-array.float64-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Float64Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Float64', function (init) {
   return function Float64Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.for-each.js b/packages/core-js/modules/es.typed-array.for-each.js
index d44e367f01bf..bc2f28f7f29d 100644
--- a/packages/core-js/modules/es.typed-array.for-each.js
+++ b/packages/core-js/modules/es.typed-array.for-each.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.forEach` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.foreach
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.foreach
 exportTypedArrayMethod('forEach', function forEach(callbackfn /* , thisArg */) {
   $forEach(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.from.js b/packages/core-js/modules/es.typed-array.from.js
index 8c21e15dc85b..79ad0f1374e1 100644
--- a/packages/core-js/modules/es.typed-array.from.js
+++ b/packages/core-js/modules/es.typed-array.from.js
@@ -4,5 +4,5 @@ var exportTypedArrayStaticMethod = require('../internals/array-buffer-view-core'
 var typedArrayFrom = require('../internals/typed-array-from');
 
 // `%TypedArray%.from` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.from
+// https://tc39.es/ecma262/#sec-%typedarray%.from
 exportTypedArrayStaticMethod('from', typedArrayFrom, TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS);
diff --git a/packages/core-js/modules/es.typed-array.includes.js b/packages/core-js/modules/es.typed-array.includes.js
index eab133b09096..b465840fb91d 100644
--- a/packages/core-js/modules/es.typed-array.includes.js
+++ b/packages/core-js/modules/es.typed-array.includes.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.includes` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.includes
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.includes
 exportTypedArrayMethod('includes', function includes(searchElement /* , fromIndex */) {
   return $includes(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.index-of.js b/packages/core-js/modules/es.typed-array.index-of.js
index 434149755541..b369f5c14d6e 100644
--- a/packages/core-js/modules/es.typed-array.index-of.js
+++ b/packages/core-js/modules/es.typed-array.index-of.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.indexOf` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.indexof
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.indexof
 exportTypedArrayMethod('indexOf', function indexOf(searchElement /* , fromIndex */) {
   return $indexOf(aTypedArray(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.int16-array.js b/packages/core-js/modules/es.typed-array.int16-array.js
index f10dfba18044..3cbdf0321071 100644
--- a/packages/core-js/modules/es.typed-array.int16-array.js
+++ b/packages/core-js/modules/es.typed-array.int16-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Int16Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Int16', function (init) {
   return function Int16Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.int32-array.js b/packages/core-js/modules/es.typed-array.int32-array.js
index 49cde0e5019e..b45898931285 100644
--- a/packages/core-js/modules/es.typed-array.int32-array.js
+++ b/packages/core-js/modules/es.typed-array.int32-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Int32Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Int32', function (init) {
   return function Int32Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.int8-array.js b/packages/core-js/modules/es.typed-array.int8-array.js
index 96def910913b..43ed6b13bccf 100644
--- a/packages/core-js/modules/es.typed-array.int8-array.js
+++ b/packages/core-js/modules/es.typed-array.int8-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Int8Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Int8', function (init) {
   return function Int8Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.iterator.js b/packages/core-js/modules/es.typed-array.iterator.js
index fd7a179411f9..0eb7f5deb81d 100644
--- a/packages/core-js/modules/es.typed-array.iterator.js
+++ b/packages/core-js/modules/es.typed-array.iterator.js
@@ -21,18 +21,18 @@ var typedArrayValues = function values() {
 };
 
 // `%TypedArray%.prototype.entries` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.entries
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.entries
 exportTypedArrayMethod('entries', function entries() {
   return arrayEntries.call(aTypedArray(this));
 });
 // `%TypedArray%.prototype.keys` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.keys
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.keys
 exportTypedArrayMethod('keys', function keys() {
   return arrayKeys.call(aTypedArray(this));
 });
 // `%TypedArray%.prototype.values` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.values
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.values
 exportTypedArrayMethod('values', typedArrayValues, !CORRECT_ITER_NAME);
 // `%TypedArray%.prototype[@@iterator]` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype-@@iterator
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype-@@iterator
 exportTypedArrayMethod(ITERATOR, typedArrayValues, !CORRECT_ITER_NAME);
diff --git a/packages/core-js/modules/es.typed-array.join.js b/packages/core-js/modules/es.typed-array.join.js
index ef41339bbc27..b4cfa425ddb2 100644
--- a/packages/core-js/modules/es.typed-array.join.js
+++ b/packages/core-js/modules/es.typed-array.join.js
@@ -6,7 +6,7 @@ var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 var $join = [].join;
 
 // `%TypedArray%.prototype.join` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.join
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.join
 // eslint-disable-next-line no-unused-vars
 exportTypedArrayMethod('join', function join(separator) {
   return $join.apply(aTypedArray(this), arguments);
diff --git a/packages/core-js/modules/es.typed-array.last-index-of.js b/packages/core-js/modules/es.typed-array.last-index-of.js
index 7bb99732c3ec..6b4d4c48e672 100644
--- a/packages/core-js/modules/es.typed-array.last-index-of.js
+++ b/packages/core-js/modules/es.typed-array.last-index-of.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.lastIndexOf` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.lastindexof
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.lastindexof
 // eslint-disable-next-line no-unused-vars
 exportTypedArrayMethod('lastIndexOf', function lastIndexOf(searchElement /* , fromIndex */) {
   return $lastIndexOf.apply(aTypedArray(this), arguments);
diff --git a/packages/core-js/modules/es.typed-array.map.js b/packages/core-js/modules/es.typed-array.map.js
index 7432a6f76d61..e7decc3eae75 100644
--- a/packages/core-js/modules/es.typed-array.map.js
+++ b/packages/core-js/modules/es.typed-array.map.js
@@ -8,7 +8,7 @@ var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.map` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.map
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.map
 exportTypedArrayMethod('map', function map(mapfn /* , thisArg */) {
   return $map(aTypedArray(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {
     return new (aTypedArrayConstructor(speciesConstructor(O, O.constructor)))(length);
diff --git a/packages/core-js/modules/es.typed-array.of.js b/packages/core-js/modules/es.typed-array.of.js
index 8bad32b59b5b..2c9064b4ac9c 100644
--- a/packages/core-js/modules/es.typed-array.of.js
+++ b/packages/core-js/modules/es.typed-array.of.js
@@ -6,7 +6,7 @@ var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
 var exportTypedArrayStaticMethod = ArrayBufferViewCore.exportTypedArrayStaticMethod;
 
 // `%TypedArray%.of` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.of
+// https://tc39.es/ecma262/#sec-%typedarray%.of
 exportTypedArrayStaticMethod('of', function of(/* ...items */) {
   var index = 0;
   var length = arguments.length;
diff --git a/packages/core-js/modules/es.typed-array.reduce-right.js b/packages/core-js/modules/es.typed-array.reduce-right.js
index fe2278f05837..27812d47a3d2 100644
--- a/packages/core-js/modules/es.typed-array.reduce-right.js
+++ b/packages/core-js/modules/es.typed-array.reduce-right.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.reduceRicht` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduceright
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduceright
 exportTypedArrayMethod('reduceRight', function reduceRight(callbackfn /* , initialValue */) {
   return $reduceRight(aTypedArray(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.reduce.js b/packages/core-js/modules/es.typed-array.reduce.js
index 35c19a204024..2ce57a433a73 100644
--- a/packages/core-js/modules/es.typed-array.reduce.js
+++ b/packages/core-js/modules/es.typed-array.reduce.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.reduce` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reduce
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reduce
 exportTypedArrayMethod('reduce', function reduce(callbackfn /* , initialValue */) {
   return $reduce(aTypedArray(this), callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.reverse.js b/packages/core-js/modules/es.typed-array.reverse.js
index 1d607f140082..4a5a87069ab8 100644
--- a/packages/core-js/modules/es.typed-array.reverse.js
+++ b/packages/core-js/modules/es.typed-array.reverse.js
@@ -6,7 +6,7 @@ var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 var floor = Math.floor;
 
 // `%TypedArray%.prototype.reverse` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.reverse
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.reverse
 exportTypedArrayMethod('reverse', function reverse() {
   var that = this;
   var length = aTypedArray(that).length;
diff --git a/packages/core-js/modules/es.typed-array.set.js b/packages/core-js/modules/es.typed-array.set.js
index bc4516eff173..05e14bc1f037 100644
--- a/packages/core-js/modules/es.typed-array.set.js
+++ b/packages/core-js/modules/es.typed-array.set.js
@@ -14,7 +14,7 @@ var FORCED = fails(function () {
 });
 
 // `%TypedArray%.prototype.set` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.set
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.set
 exportTypedArrayMethod('set', function set(arrayLike /* , offset */) {
   aTypedArray(this);
   var offset = toOffset(arguments.length > 1 ? arguments[1] : undefined, 1);
diff --git a/packages/core-js/modules/es.typed-array.slice.js b/packages/core-js/modules/es.typed-array.slice.js
index d5b5ced24702..c6e92595987c 100644
--- a/packages/core-js/modules/es.typed-array.slice.js
+++ b/packages/core-js/modules/es.typed-array.slice.js
@@ -14,7 +14,7 @@ var FORCED = fails(function () {
 });
 
 // `%TypedArray%.prototype.slice` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.slice
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.slice
 exportTypedArrayMethod('slice', function slice(start, end) {
   var list = $slice.call(aTypedArray(this), start, end);
   var C = speciesConstructor(this, this.constructor);
diff --git a/packages/core-js/modules/es.typed-array.some.js b/packages/core-js/modules/es.typed-array.some.js
index 37bb6e434458..214115b8e3d1 100644
--- a/packages/core-js/modules/es.typed-array.some.js
+++ b/packages/core-js/modules/es.typed-array.some.js
@@ -6,7 +6,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.some` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.some
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.some
 exportTypedArrayMethod('some', function some(callbackfn /* , thisArg */) {
   return $some(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
 });
diff --git a/packages/core-js/modules/es.typed-array.sort.js b/packages/core-js/modules/es.typed-array.sort.js
index f23c8e22ce92..46cc25e4b0ac 100644
--- a/packages/core-js/modules/es.typed-array.sort.js
+++ b/packages/core-js/modules/es.typed-array.sort.js
@@ -6,7 +6,7 @@ var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 var $sort = [].sort;
 
 // `%TypedArray%.prototype.sort` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.sort
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort
 exportTypedArrayMethod('sort', function sort(comparefn) {
   return $sort.call(aTypedArray(this), comparefn);
 });
diff --git a/packages/core-js/modules/es.typed-array.subarray.js b/packages/core-js/modules/es.typed-array.subarray.js
index de96d515135b..39b78d9cde3f 100644
--- a/packages/core-js/modules/es.typed-array.subarray.js
+++ b/packages/core-js/modules/es.typed-array.subarray.js
@@ -8,7 +8,7 @@ var aTypedArray = ArrayBufferViewCore.aTypedArray;
 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
 
 // `%TypedArray%.prototype.subarray` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.subarray
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.subarray
 exportTypedArrayMethod('subarray', function subarray(begin, end) {
   var O = aTypedArray(this);
   var length = O.length;
diff --git a/packages/core-js/modules/es.typed-array.to-locale-string.js b/packages/core-js/modules/es.typed-array.to-locale-string.js
index 50095752f622..c6712cfe4a82 100644
--- a/packages/core-js/modules/es.typed-array.to-locale-string.js
+++ b/packages/core-js/modules/es.typed-array.to-locale-string.js
@@ -21,7 +21,7 @@ var FORCED = fails(function () {
 });
 
 // `%TypedArray%.prototype.toLocaleString` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tolocalestring
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.tolocalestring
 exportTypedArrayMethod('toLocaleString', function toLocaleString() {
   return $toLocaleString.apply(TO_LOCALE_STRING_BUG ? $slice.call(aTypedArray(this)) : aTypedArray(this), arguments);
 }, FORCED);
diff --git a/packages/core-js/modules/es.typed-array.to-string.js b/packages/core-js/modules/es.typed-array.to-string.js
index accca0bf47af..607dd9f9e4b7 100644
--- a/packages/core-js/modules/es.typed-array.to-string.js
+++ b/packages/core-js/modules/es.typed-array.to-string.js
@@ -17,5 +17,5 @@ if (fails(function () { arrayToString.call({}); })) {
 var IS_NOT_ARRAY_METHOD = Uint8ArrayPrototype.toString != arrayToString;
 
 // `%TypedArray%.prototype.toString` method
-// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.tostring
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.tostring
 exportTypedArrayMethod('toString', arrayToString, IS_NOT_ARRAY_METHOD);
diff --git a/packages/core-js/modules/es.typed-array.uint16-array.js b/packages/core-js/modules/es.typed-array.uint16-array.js
index 5eea7c27c5ae..c75b83144cd5 100644
--- a/packages/core-js/modules/es.typed-array.uint16-array.js
+++ b/packages/core-js/modules/es.typed-array.uint16-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Uint16Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Uint16', function (init) {
   return function Uint16Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.uint32-array.js b/packages/core-js/modules/es.typed-array.uint32-array.js
index a0fc5695798c..c82e632f6c50 100644
--- a/packages/core-js/modules/es.typed-array.uint32-array.js
+++ b/packages/core-js/modules/es.typed-array.uint32-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Uint32Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Uint32', function (init) {
   return function Uint32Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.uint8-array.js b/packages/core-js/modules/es.typed-array.uint8-array.js
index c9e428769e28..8fd8619d2f51 100644
--- a/packages/core-js/modules/es.typed-array.uint8-array.js
+++ b/packages/core-js/modules/es.typed-array.uint8-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Uint8Array` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Uint8', function (init) {
   return function Uint8Array(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.typed-array.uint8-clamped-array.js b/packages/core-js/modules/es.typed-array.uint8-clamped-array.js
index 666a8f709461..02f1d6619caf 100644
--- a/packages/core-js/modules/es.typed-array.uint8-clamped-array.js
+++ b/packages/core-js/modules/es.typed-array.uint8-clamped-array.js
@@ -1,7 +1,7 @@
 var createTypedArrayConstructor = require('../internals/typed-array-constructor');
 
 // `Uint8ClampedArray` constructor
-// https://tc39.github.io/ecma262/#sec-typedarray-objects
+// https://tc39.es/ecma262/#sec-typedarray-objects
 createTypedArrayConstructor('Uint8', function (init) {
   return function Uint8ClampedArray(data, byteOffset, length) {
     return init(this, data, byteOffset, length);
diff --git a/packages/core-js/modules/es.weak-map.js b/packages/core-js/modules/es.weak-map.js
index 38f2f72fdd9a..dd2520841bd0 100644
--- a/packages/core-js/modules/es.weak-map.js
+++ b/packages/core-js/modules/es.weak-map.js
@@ -19,7 +19,7 @@ var wrapper = function (init) {
 };
 
 // `WeakMap` constructor
-// https://tc39.github.io/ecma262/#sec-weakmap-constructor
+// https://tc39.es/ecma262/#sec-weakmap-constructor
 var $WeakMap = module.exports = collection('WeakMap', wrapper, collectionWeak);
 
 // IE11 WeakMap frozen keys fix
diff --git a/packages/core-js/modules/es.weak-set.js b/packages/core-js/modules/es.weak-set.js
index ef6b1bc4f62f..80d9c34fe797 100644
--- a/packages/core-js/modules/es.weak-set.js
+++ b/packages/core-js/modules/es.weak-set.js
@@ -3,7 +3,7 @@ var collection = require('../internals/collection');
 var collectionWeak = require('../internals/collection-weak');
 
 // `WeakSet` constructor
-// https://tc39.github.io/ecma262/#sec-weakset-constructor
+// https://tc39.es/ecma262/#sec-weakset-constructor
 collection('WeakSet', function (init) {
   return function WeakSet() { return init(this, arguments.length ? arguments[0] : undefined); };
 }, collectionWeak);